Notice: Undefined index: filename in /var/git/dpsgmr-website/backend/classes/bundle/mediators/FileHandler.php on line 485

Fatal error: Uncaught TypeError: Typed property EifX\FileHandler::$filename must be string, null used in /var/git/dpsgmr-website/backend/classes/bundle/mediators/FileHandler.php:485 Stack trace: #0 /var/git/dpsgmr-website/backend/classes/SingleDataResourceHandler.php(391): EifX\FileHandler->loadFromDB() #1 /var/git/dpsgmr-website/backend/classes/SingleDataResourceHandler.php(52): DPSGMR\SingleDataResourceHandler::resDownload() #2 /var/git/dpsgmr-website/backend/index.php(67): DPSGMR\SingleDataResourceHandler::getResource() #3 /var/git/dpsgmr-website/index.php(27): require('/var/git/dpsgmr...') #4 {main} thrown in /var/git/dpsgmr-website/backend/classes/bundle/mediators/FileHandler.php on line 485