Fatal error: Uncaught Error: Class 'FFMpeg\Media\AbstractMediaType' not found in /home/kubalos2/public_html/testtestowy/vendor/pbmedia/php-ffmpeg/src/FFMpeg/Media/Concat.php:29 Stack trace: #0 {main} thrown in /home/kubalos2/public_html/testtestowy/vendor/pbmedia/php-ffmpeg/src/FFMpeg/Media/Concat.php on line 29