Fatal error: Uncaught Error: Interface "Symfony\Component\Console\Output\OutputInterface" not found in C:\01_Projekte\liga_24\phpseclib\vendor\symfony\console\Style\OutputStyle.php:24 Stack trace: #0 {main} thrown in C:\01_Projekte\liga_24\phpseclib\vendor\symfony\console\Style\OutputStyle.php on line 24