[Basesite] 404 when hovering over "Räume"

[pollti]

STR:

1. Login as leitung or probably any other user with enouph permissions.
2. Got to dashboard or admin area.
3. Hover over "Räume".

Current result:

• Red 404 bar appears (see screenshot).

Exected result:

• Actually no idea, but probably some menu to appear.

Reproducible:

• Always, but reload necesary every time.