I solved my problem with first to go in to DET and save the tower freq to default.
Now I can communicate with the tower and ground crew.
Before you update...
As an obvious reminder, Please never install a BMS update on a modded install (e.g. Janhas models, custom changes, ...)
Before you post a Bug Report!
We remind People that in order to help troubleshooting issues, they need to follow the steps described in THIS POST