f7058d9fe2852b2a538b04548244660f *db2003-08-23d2t01.shn 2387888267ed2eb9a9a39226bb5b613d *db2003-08-23d2t02.shn ead6476e7720c8d892860ff6daf2ac14 *db2003-08-23d2t03.shn c567923ebbabd0b47a5ce1087bb28599 *db2003-08-23d2t04.shn 4c4505896da44719aa2bdf06c4b2cf7f *db2003-08-23d2t05.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned