What's wrong with SMF forum engine? It's one of the most stable and secure forum.
Better SMF forum or PHPBB, MyBB than any crappy nulled forum software like XenForo, IPB or VBulletin.
*** For example: As you have on lineage2.gold LOL! I doubt that you have license for your IPB copy :)
As you can see from your source where IPSfocus line is commented also :)
It is not recommended to use NULLED forum software because of security and a lot of vulnerabilities...
Well ... Trance consider