extras in the drop down menu almost empty

Hello dear list,
I have a strange thing in my extras drop down menu since yesterday i only see the FTM extras link and no more audio tester midi tester etc... When i look to the extras file everybody is there so what's on is the link corrupted and how can i correct it. I tried to add the file in the preferences menu but no way.
If anybody has an hint he's welcome :-).
Thank you
Cheers
Hubert