When opening a link to view a PDF of an article, for example:
https://sciencescholar.us/journal/index.php/ijhs/article/view/110
It is not allowed to view the PDF, however, a view enabled to view PHP errors, the following Warnings are shown:
Strict Standards: Declaration of AbntCitationPlugin :: fetchCitation () should be compatible with CitationPlugin :: fetchCitation ($ article, $ issue, $ journal) in /home/w170301s/public_html/journal/plugins/citationFormats/abnt/AbntCitationPlugin.inc.php on line 0
Strict Standards: Declaration of AbstCitationPlugin :: manage () should be compatible with Plugin :: manage ($ args, $ request) in /home/w170301s/public_html/journal/plugins/citationFormats/abnt/AbntCitationPlugin.inc.php on line 0
Strict Standards: Only variables should be assigned by reference in /home/w170301s/public_html/journal/plugins/generic/orcidProfile/OrcidProfilePlugin.inc.php on line 90
Warning: Can not modify header information - headers already sent by (output started at /home/w170301s/public_html/journal/plugins/generic/pdfJsViewer/PdfJsViewerPlugin.inc.php:18) in / home / w170301s / public_html / journal / lib / pkp / classes / template / PKPTemplateManager.inc.php on line 785
Warning: Can not modify header information - headers already sent by (output started at /home/w170301s/public_html/journal/plugins/generic/pdfJsViewer/PdfJsViewerPlugin.inc.php:18) in / home / w170301s / public_html / journal / lib / pkp / classes / template / PKPTemplateManager.inc.php on line 788
I emphasize that as a final result, the main page is redirected to me, as shown below:
I have temporarily disabled the PDF preview, while the problem is solved.
I will be outstanding and very grateful if you help me solve it
Victor