Thread:Project:Support desk/error message on site/reply (2)

Your MediaWiki version is 1.14.0, and PHP is 5.3.18 (cgi-fcgi). This is problematic, because PHP 5.3 deprecated some things that were in use in 1.14, and probably extensions too.

You should either downgrade PHP to 5.2 or upgrade MediaWiki and extensions to a more recent version. Note that many extensions haven't been tagged for 1.20 properly/yet, so you are advised to test them on a testing environment to see that everything still works, or do a backup and prepare to restore it in case things fail (you can't downgrade the database after an upgrade).