Problems with Activation

I have changed my PC and reinstalled Trados.

However, once I restart the application it doesn´t work.

I use TimeBuddy and there is probably problems with it.

I can´t activate the program. My license seems to not be valid.

I have licence for Trados Freelance edition 2021.

Where can I download instalation files?

Can you help me with instalation and activation?

What steps shall I do?

Shall I reset my licence and reinstall?

What about the folders in Windows?

Are you able to help me trough Weber or TeamViewer?

Regards

M.Dusílek