History not showing

Hello, when viewing the history of an article, a circle stays spinning and shows the following in the error log:

AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught Error: Call to a member function getStageId() on null in /revistaccinformacion.net/httpdocs/lib/pkp/classes/services/PKPSubmissionFileService.inc.php:771\nStack trace:\n#0 /revistaccinformacion.net/httpdocs/lib/pkp/controllers/grid/eventLog/EventLogGridRow.inc.php(79): PKP\Services\PKPSubmissionFileService->getWorkflowStageId()\n#1 /revistaccinformacion.net/httpdocs/lib/pkp/classes/controllers/grid/GridHandler.inc.php(1068): EventLogGridRow->initialize()\n#2 /revistaccinformacion.net/httpdocs/lib/pkp/classes/controllers/grid/GridHandler.inc.php(985): GridHandler->_getInitializedRowInstance()\n#3 /revistaccinformacion.net/httpdocs/lib/pkp/classes/controllers/grid/GridHandler.inc.php(1033): GridHandler->renderRowsInternally()\n#4 /revistaccinformacion.net/httpdocs/lib/pkp/classes/controllers/grid/GridHandler.inc.php(923): GridHandler->renderGridBodyPartsInternally()\n#5 /var/www/vhosts/…’, referer: https://www.revistaccinformacion.net/index.php/rcci/workflow/index/267/3

I’ve already been checking the database, but I can’t find anything relevant.
Any ideas?
PHP 7.4
OJS3.3.0-11 (upgraded from 3.2.x)

Thanks in advanced.

I found the solution.
The problem was caused by a file (DOCX) being deleted in the review step by a reviewer. :smiley: