[FIX]pyafipws: Fix AttributeError in cot.py

[jcadhoc]

Summary

(short description of what does this PR, Issue #, etc.)

Checklist

• Classes, Variables, function and methods logic ok
• Comments written explaining what the code does
• All python code is PEP8 compliant (run black .)
• No lint issues (run flake8)
• Test coverage with pytest implemented
• Reviewers assigned (at least 1 mentor)

Manual test evidence

(attach command-line examples, execution output & logs, etc.)