a9f3d3c99a2d8b5c5a01e2c46ef4efb7 mmw20010421d2/mmw20010421d2t1.shn 86bfb1cafc434e47c1ee588d966a7e2e mmw20010421d2/mmw20010421d2t2.shn 11c4f79badde0f1519cac7ccdd143f43 mmw20010421d2/mmw20010421d2t3.shn 95e8cdb6a346fa83ab969cb4fa9a9a2a mmw20010421d2/mmw20010421d2t4.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned