Fatal error: Uncaught Error: Class "Illuminate\Database\Schema\SchemaState" not found in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/database/Schema/PostgresSchemaState.php:8 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/database/Schema/PostgresSchemaState.php on line 8