191a7bb5bbd3a26c90eec828b6eb8bfb *nd01-07-28t02.shn cac5913738a8dfee6c30dee45a48cfb0 *nd01-07-28t01.shn c1c91c13304abf2600e6dcd55da06c3c *nd01-07-28t03.shn 7ac424e7d1bf7073c496acdda0715086 *nd01-07-28t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned