6c05aa0673623f7a78e8ccaf5fe524d2 [shntool] gd1988-04-01s1t01.shn 3bc027d8b34d80261a44df6790bdf4c3 [shntool] gd1988-04-01s1t02.shn 66f3d5af9bc670fa04d386bbef3074bb [shntool] gd1988-04-01s1t03.shn f570b6e180a957bdd892dd3457a90119 [shntool] gd1988-04-01s1t04.shn 76407a6ccb64d82c1101f1b2095191f7 [shntool] gd1988-04-01s1t05.shn f7bfdfbade18ada03eae6b0d6df98811 [shntool] gd1988-04-01s1t06.shn a6b311ed4e1236ec2c28cd8f15fe5ad4 [shntool] gd1988-04-01s1t07.shn 253a1d4a67c22927242f6de859864c56 [shntool] gd1988-04-01s1t08.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned