0e4cf02095cd5365afc5e625daa0c80d *skb2001-05-04d1t01.shn b717308d333fac63f586db47e56cddf1 *skb2001-05-04d1t02.shn 9ae3b56f3aee76cc462dd1a2a3725bc0 *skb2001-05-04d1t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned