Fatal error: Uncaught Error: Class 'Doctrine\Migrations\AbstractMigration' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Media/Migrations/Postgresql/Version20200823164701.php:14 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Media/Migrations/Postgresql/Version20200823164701.php on line 14