9e1a3f6aad51e68d6515f290dee7cbed *kdtu99-08-15d2t01.shn 8a1d113d2cf45c14275e2df90dfe1712 *kdtu99-08-15d2t02.shn 69e24b966aa437a1fdefd691b33b2bf6 *kdtu99-08-15d2t03.shn 8eac3f6e96828be4377e254d59072c39 *kdtu99-08-15d2t04.shn 2d791761587aeb92f12a2eae2b034dd5 *kdtu99-08-15d2t05.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned