27e8ceb1fd52de6b1b80e8274b01855b *skb00-12-27d1t01.shn da974afc25be10c81ed10c83a9be0043 *skb00-12-27d1t02.shn 057f2ac046064cf5c399c0a7fba67c7c *skb00-12-27d1t03.shn 55d98b75a9513a1d3003d5ec0b274f8c *skb00-12-27d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned