43133203a0fface94a29d0f8763060d8 *sci010317d3t1.shn 4dfa9a62bd7b4685044921c440b248e4 *sci010317d3t2.shn 5b10d32b54f4977e7875fb5950257e76 *sci010317d3t3.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned