Fatal error: Uncaught Error: Interface "Psy\ManualUpdater\Checker" not found in /opt/lampp/htdocs/tsipu/vendor/psy/psysh/src/ManualUpdater/GitHubChecker.php:16 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/tsipu/vendor/psy/psysh/src/ManualUpdater/GitHubChecker.php on line 16