64e38aa755d2f6ee291ca6b13e2ee573 *db99-08-13d1t4.shn 221542b0aebd4f20b96e3c5b27e30ecd *db99-08-13d1t2.shn 14b8f33330060e5dd0cbd1b943f3f27b *db99-08-13d1t3.shn 016d7e040a9c7eb1acf9bf8d1d9ed34f *db99-08-13d1t1.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned