Hello Paula Ribeiro 

The issue could be caused by other plugins than Language Weaver. Please try the solution from this article: https://gateway.sdl.com/apex/communityknowledge?articleName=000003136

Thank you,

Sorin

Hi Sorin and thanks for your help.
I have already tried what the article says but, and I think the problem here is different. My Trados Studio PRO was un-installed from the laptop from the previous user and now, after the license re-activation I am trying to install it again and this is when the error shows. I didn't even finish installing the license again as the error shows before the installation is completed. I really don’t know what to do!

Hi Sorin and thanks for your help.
I have already tried what the article says but, and I think the problem here is different. My Trados Studio PRO was un-installed from the laptop from the previous user and now, after the license re-activation I am trying to install it again and this is when the error shows. I didn't even finish installing the license again as the error shows before the installation is completed. I really don’t know what to do!