fd60e8b3010c1b3aed86b3a375b324e2 *db2003-08-08d1t01.shn b593a245a4ab6c753c03e6fb05e47446 *db2003-08-08d1t02.shn 163edbf43ec34269a6bc27335142a4af *db2003-08-08d1t03.shn 548ea7d7ce10532fe97792cf8c3b4ac9 *db2003-08-08d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned