Installed Portal Add ON / FORUM / Systemadministration - Navigation Cache?!

Hi,
i installed the Add ON FORUM for our Portal.
I ve restarted the whole Portal after that.. now the Menupoint:
Navigation Cache under System Administration - Detailed Navigation is gone?
I only see there: Short URLs... before i installed the FORUM Component there was over "Short URLs" The Point:
Navigation Cache...?!
Did anybody knows whats happened there? How can i clear now the Navigation cache?
Please help.
regards
Bjoern

Hi,
i searched the whole system but its lost?!?!
Is there another methode to clear the Navigation Cache? Or did anybody else faced the same problem in the past?
Regards

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Installed Portal Add ON / FORUM / Systemadministration - Navigation Cache?!

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