9f8359c7ced01078b8f531e91a55276b bt1991-01-06d3t01.shn b414bb1e60eb1788933b8b061e9e9daf bt1991-01-06d3t02.shn 011927ded9db3c2bcef40a4989c029fa bt1991-01-06d3t03.shn 4664b1146d703635446db3293f9c31e2 bt1991-01-06d3t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned