You are using Sketchup Pro on to many devices

When I try to use my Sketchup Pro 2021 it keeps saying that I’m using to many machines while I have 3 out of the 5 seats free. What can I do? I signed out on all of them and still it gives the same ERROR.
Please help me out.

Each ‘seat’ of your subscription plan must be tied to an individual Trimble ID.
Each Trimble ID may activate on two (but can on three, as you have discovered)
Check this:

Admins and Account owners can not manage the individual devices of their ‘members’ or seat-takers, they would have to do it theirselves while going to their own AMP (‘My Products > View Included Apps > SketchUp Pro > Manage Devices)