I would like to switch my license to another computer, but I can't deactivate my license online. Could you please help to deactivate my license? I previously used a Macbook Pro. Thanks!

I would like to switch my license to another computer, but I can't deactivate my license online. Could you please help to deactivate my license? I previously used a Macbook Pro. Thanks!
Hello, I have the same problem - I can't deactivate the license and activate it on a new computer. The following warning is displayed:
There are multiple instances of this application running.
Close the other instances before deactivating the license.
Kind regards
Barbora
Hello, I have the same problem - I can't deactivate the license and activate it on a new computer. The following warning is displayed:
There are multiple instances of this application running.
Close the other instances before deactivating the license.
Kind regards
Barbora