All of Add-on I installed, I don't know which made error
Automatic Mobile Style Switcher 0.1
Avim and Avim Control In Editor 1.0
Custom BBCode Manager v1.2.1
GoodForNothing Title Manipulator 1.0.0
More Options to Limit Signatures for new Members 1.0.2
Post Message Regex Replacer 1.0.0
Post Ratings 1.3.1
ragtek Navbar Manager 1.0.0
sonnb - Bulk impoter for smilies management 1.0.1
TaigaChat 0.5.5
****** - Advance Forum Statics 1.2.0
****** More Thread 1.0
[bd] Banking 0.9.9.1
[bd] Widget Framework 1.5.3
[YOU] hack 1.1.1
Those user titles are based on trophy points. Trophy points are handled by a cron that runs every hour, but it only processes recently active users (logged in within the last 24 hours). So after an import the users won't get new titles until about an hour after they first log in. Just tell them to wait.