MMW_Mannheim_2004-1012T03.flac:8cf887b3eed0ca9ce3ba3fd4978659f2 MMW_Mannheim_2004-1012T01.flac:e61298f6f70a9d019b02f5273abdd33b MMW_Mannheim_2004-1012T02.flac:52513d8e30afba85f1336f7a5dff1da1 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned