Fatal error: Uncaught Error: Interface "Psy\Completion\Source\SourceInterface" not found in /users/danielstruebig/www/familyhelper/vendor/psy/psysh/src/Completion/Source/ClassConstantSource.php:23 Stack trace: #0 {main} thrown in /users/danielstruebig/www/familyhelper/vendor/psy/psysh/src/Completion/Source/ClassConstantSource.php on line 23