Changed event unasigned error to warning

[Alek050]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.40%. Comparing base (e4ce2b3) to head (124b6a1).
⚠️ Report is 76 commits behind head on develop.

Files with missing lines	Patch %	Lines
...allpy/utils/synchronise_tracking_and_event_data.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #345      +/-   ##
===========================================
+ Coverage    99.22%   99.40%   +0.17%     
===========================================
  Files           49       65      +16     
  Lines         3736     5002    +1266     
===========================================
+ Hits          3707     4972    +1265     
- Misses          29       30       +1     

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