When trying to update my Ojs from version 2.4.2.3 to Ojs 3.x then this log appears a blank screen with no functionality. Does anyone know why this?

Hi

For some reason my database have some entries in both table article_id and article_supplementary_files that have no real article in table articles.
Alec noticed that in Upgrade to OJS 3.0 from 2.4.8.0 - Error while converting supplementary files - #68 by Adriano_Jose

But I’m getting now:

[code: Installer Installer::provideSupplementaryFilesForReview]
PHP Fatal error: Call to a member function getFileId() on null in /files/www/revistas3/lib/pkp/classes/submission/PKPSubmissionFileDAO.inc.php on line 1029

Regards.