Hello,

The Error connecting to license server error message means that for some reason information on your Tekla Structures Learning license isn't passed on correctly. This could happen for a number of reasons. Please see this discussion thread for more information.

In your case it seems to be that the reason for the error message is that your Tekla Structures Learning license has expired. Please see instructions how to renew your license here: https://campus.tekla.com/forum/discussion-forum/how-do-i-renew-my-tekla-structures-learning-license