DOI Submission Error OJS 3.1.1.4

Dear Team,
I m facing a problem when I submitted DOI through CrossRef Export Plugin showing Could not convert selected objects. DB Error: MySQL server has gone away.

OJS Version: 3.1.1.4

Please check the below error details.

Validation errors:
Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}space’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}space’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

Element ‘{XML Schema}element’, attribute ‘ref’: The QName value ‘{http://www.w3.org/1998/Math/MathML}math’ does not resolve to a(n) element declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}type’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}href’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}role’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}title’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}show’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{XLink namespace}actuate’ does not resolve to a(n) attribute declaration.

attribute use (unknown), attribute ‘ref’: The QName value ‘{The "xml:" Namespace}lang’ does not resolve to a(n) attribute declaration.
Invalid XML:

<?xml version="1.0" encoding="utf-8"?>

<doi_batch xmlns=“http://www.crossref.org/schema/4.3.6” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xmlns:jats=“http://www.ncbi.nlm.nih.gov/JATS1” xmlns:ai=“http://www.crossref.org/AccessIndicators.xsd” version=“4.3.6” xsi:schemaLocation=“http://www.crossref.org/schema/4.3.6 https://www.crossref.org/schemas/crossref4.3.6.xsd”>

_1568176175 1568176175 XYZ XYZZ@gmail.com Annual Research & Review in Biology Annual Research & Review in Biology ARRB 2347-565X 09 09 2019 Evaluation of Morphological and Biochemical Characteristics of Sorghum [Sorghum bicolor [L.] Moench] Varieties in Response Salinity Stress Wilton Mbinda Musa Kimtai Salinity is among the most severe and widespread environm. 09 10 2019 1 9 10.9734/arrb/2019/v33i130110 http://www.abc.com/index.php/ARRB/article/view/30110 http://www.abc.com/index.php/ARRB/article/download/30110/56513 http://www.abc.com/index.php/raa/article/download/30110/56513 http://www.abc.com/index.php/ARRB/article/download/30110/56514 Could not convert selected objects. DB Error: MySQL server has gone away

Regards,
Surojit Bera