Thread:Project:Support desk/Mediawiki 1.23.9 Internal error when click the "Preferences" link/reply (2)

thunk you for the reply

the errors log are like:

PHP Notice: Undefined index: in /.../mediawiki-1.23.9/includes/db/Database.php on line 876, referer: https://localhost/wiki/project/index.ph/Special:Preferences PHP Notice: A session had already been started - ignoring session_start in /.../mediawiki-1.23.9/includes/GlobalFunctions.php on line 3553, referer: https://localhost/wiki/project/index.php/Special:Preferences PHP Notice: DB transaction callbacks still pending (from Title::invalidateCache). in /.../mediawiki-1.23.9/includes/db/Database.php on line 4155 referer: https://localhost/wiki/project/index.php/Special:Preference