GSW1996-10-15t01.flac:33f4c61df353373a9aa9ddc8544786f4 GSW1996-10-15t02.flac:7cd22f1023d53403c2dbbdbf1808233a GSW1996-10-15t03.flac:5fa63d98be9219b1574caeeb531db690 GSW1996-10-15t04.flac:895686c3bb3b594630cb6eed73d3a860 GSW1996-10-15t05.flac:cad5c883b0fca040106dbd2519bcac04 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned