DOCS: update troubleshooting guide with extension troubleshooting

[eblanco-ansys]

Description

Update troubleshooting guide with extension troubleshooting

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.27%. Comparing base (fcfe97d) to head (8fd16a0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6771      +/-   ##
==========================================
- Coverage   83.27%   83.27%   -0.01%     
==========================================
  Files         246      246              
  Lines       77487    77487              
==========================================
- Hits        64526    64525       -1     
- Misses      12961    12962       +1     

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