gs2018-05-05t01.flac:810e250efddcec7ef8c329e9eba61085 gs2018-05-05t02.flac:3c6f34ab7cfa29260dd8ead61636b410 gs2018-05-05t03.flac:ac7e06bcacf94d8d2fbf0875927d6e55 gs2018-05-05t04.flac:bfbe82ae646ff23f72c51bb23f2109f2 gs2018-05-05t05.flac:02cf1debeaf62105f2daf6dc791c9b5e App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned