amt2015-05-05 - 01.flac:2a73dc467bb050c95f295f9674d60552 amt2015-05-05 - 02.flac:7bcc2d1107b2dae8439fbfac53b7f571 amt2015-05-05 - 03.flac:ab2fb89ecff0ac18e0bf2d0b7289c478 amt2015-05-05 - 04.flac:b0e7a35af0d2369c9e9d504a1901a9a4 amt2015-05-05 - 05.flac:ea15b28b2476d067439dce0f5a0fa5d6 amt2015-05-05 - 06.flac:8a65996b1a7382176d92d4729eb80ed7 amt2015-05-05 - 07.flac:cc45b121ef75c006115f3efbb5f69f19 amt2015-05-05 - 08.flac:25641e9c56a7fbe18647018ffb2e8dae App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned