ed65ce993c43c995599be95e7148a37b *db1999-05-13d2t01.shn c2717aa0ae96583d243dcec13c20077c *db1999-05-13d2t02.shn e1a77632690fe4f14e090a7210d25e91 *db1999-05-13d2t03.shn ea1688feffa407a615cad2e0e953120f *db1999-05-13d2t04.shn 9cdbc874e550813b3a6990b2709d5c6c *db1999-05-13d2t05.shn e8f5aeed1bb1e1d2bca05e786622bc7e *db1999-05-13d2t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned