vBulletin 5 Groups issue

[SpielbergQ80]

Hello,
I created a group in vBulletin 5 and some of the members joined the group
For some reason it seems that it just disappeared for me only !
I asked one friend to register to my forum just to check, and yes it is there and when he joined the group I received a message on my profile for the request and I accepted it, but when I refreshed the page the group again disappears only for me even when I try to search it !
What could be wrong ?