Display problem with plugin or Application

[CenT]

Hello,

recently I upgrade to 4.0.11 IPB, I noticed that several application or plugin is not functional, I feel there is only me, the problem is that some plugins or applications not displayed on my forum, such as:

- (BIM40) Chatbox 1.0.16
- Who Was Online
- Group Name Indicator

My forum : http://forum.elite-unit.eu/

I missed something ?

Thank you