885771fe7050c9e907486baf5d837b3a *um2003-06-07d1t02.shn ffd751742520e01ac12f6e06d18e46b6 *um2003-06-07d1t03.shn cb1ac1498505b196369e96c8e7963f95 *um2003-06-07d1t04.shn b70277675771762f86186b5f0bd7dfda *um2003-06-07d1t05.shn dcfb26f4f423de71fdee93dbdd08e3cb *um2003-06-07d1t06.shn e2cf80dfd5c51d1c945bf195169e74d9 *um2003-06-07d1t01.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned