404 Page not found

/mediasrv/DiplomHGK2021/2021-Choi_Hansol-Translational_imagery-03_mp4-3$$timeshot$$3/resize/size1280x720/formatJPEG

no entry with signature 2021-Choi_Hansol-Translational_imagery-03_mp4-3$$timeshot$$3

DIGMA\Mediaserver\MasterException: no entry with signature 2021-Choi_Hansol-Translational_imagery-03_mp4-3$$timeshot$$3 in /hgkstore/mediaserver/dev/app/lib/DIGMA/Mediaserver/Master.class.php:130
Stack trace:
#0 /hgkstore/mediaserver/dev/app/lib/DIGMA/Mediaserver/Master.class.php(43): DIGMA\Mediaserver\Master->loadSignature(Object(DIGMA\Mediaserver\Collection), '2021-Choi_Hanso...')
#1 /hgkstore/mediaserver/dev/app/index2.php(27): DIGMA\Mediaserver\Master::withSignature(Object(PDO), Object(DIGMA\Mediaserver\Collection), '2021-Choi_Hanso...')
#2 {main}