How to solve this error?

[22-Apr-2017 12:25:44 Asia/Kolkata] ojs2 has produced an error
Message: WARNING: DOMDocument::loadXML(): Space required after the Public Identifier in Entity, line: 1
In file: /home/csvtujou/public_html/lib/pkp/classes/webservice/XmlWebService.inc.php
At line: 83
Stacktrace:
Server info:
OS: Linux
PHP Version: 5.5.38
Apache Version: N/A
DB Driver: mysql
DB server version: 5.6.35
[22-Apr-2017 12:25:45 Asia/Kolkata] ojs2 has produced an error
Message: WARNING: DOMDocument::loadXML(): SystemLiteral " or ’ expected in Entity, line: 1
In file: /home/csvtujou/public_html/lib/pkp/classes/webservice/XmlWebService.inc.php
At line: 83
Stacktrace:
Server info:
OS: Linux
PHP Version: 5.5.38
Apache Version: N/A
DB Driver: mysql
DB server version: 5.6.35
[22-Apr-2017 12:25:45 Asia/Kolkata] ojs2 has produced an error
Message: WARNING: DOMDocument::loadXML(): SYSTEM or PUBLIC, the URI is missing in Entity, line: 1
In file: /home/csvtujou/public_html/lib/pkp/classes/webservice/XmlWebService.inc.php
At line: 83
Stacktrace:
Server info:
OS: Linux
PHP Version: 5.5.38
Apache Version: N/A
DB Driver: mysql
DB server version: 5.6.3

Hi @JyotiKant,

It looks like you’re using OJS. What version are you using? (Please include this information in your posts.)

Regards,
Ale Smecher
Public Knowledge Project Team

I was using ojs 2.4.8.1 than I updated Current version: OJS 3.0.2.0

Hi @JyotiKant,

What are you doing when you receive this message?

Regards,
Alec Smecher
Public Knowledge Project Team

We have same this problem and there are no clues to find the problem!