Fatal error: Uncaught TypeError: Return value of Pmb\Common\Library\Image\CacheImage::add() must be of the type bool, null returned in /var/www/cira.ch/pmb/pmb/Pmb/Common/Library/Image/CacheImage.php:85 Stack trace: #0 /var/www/cira.ch/pmb/pmb/Pmb/Thumbnail/Models/ThumbnailSourcesHandler.php(225): Pmb\Common\Library\Image\CacheImage::add() #1 /var/www/cira.ch/pmb/pmb/opac_css/thumbnail.php(77): Pmb\Thumbnail\Models\ThumbnailSourcesHandler->printImage() #2 {main} thrown in /var/www/cira.ch/pmb/pmb/Pmb/Common/Library/Image/CacheImage.php on line 85