Although 90% of the PDF files are uploaded in the Galley, but a few gives HTTP error, When uploading in GALLEY.
I am not an IT person, I think the error is this.
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3963
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3965
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3963
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3965
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3963
[03-May-2020 21:39:39 America/New_York] PHP Warning: array_key_exists() expects parameter 2 to be array, bool given in /home/abmconf/public_html/jras/lib/pkp/lib/vendor/adodb/adodb-php/adodb.inc.php on line 3965
[03-May-2020 21:42:24 America/New_York] PHP Warning: Declaration of QueryNoteFilesGridHandler::authorize($request, $args, $roleAssignments) should be compatible with SubmissionFilesGridHandler::authorize($request, &$args, $roleAssignments) in /home/abmconf/public_html/jras/lib/pkp/controllers/grid/files/query/QueryNoteFilesGridHandler.inc.php on line 19