We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
George Karnos
Ansys Employee

Try the following:

Close all Fluent/Ansys Programs.

Open Windows File Explorer and type in the following in the address line:

%APPDATA%\Ansys

This will take you to your APPDATA\Ansys directory.

You should see a directory named:  v231    (Or version you are using)

Rename that directory to v231.old

Now try to run.