a843cb7d2d5d8ead587dc8e19cd1f825 *sci010303d1t1.shn 18afdd9f993b2e44aecdfcd81e287a34 *sci010303d1t2.shn 81603aaffc1bde174f6a9766d87dc2ee *sci010303d1t3.shn b4660c7cbaa7bd477057a51b421c7136 *sci010303d1t4.shn d153b489c153a47182ec3513929b1c00 *sci010303d1t5.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned