fad4290231cfa1e22f872b3ef55f8862 *skb2001-12-29d2t1.shn fc4e0514f8f5873b7e9398d7c08365fc *skb2001-12-29d2t2.shn 01d58d5c06440aa61849d9cb38a4b849 *skb2001-12-29d2t3.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned