Fix empty error logs

[badrogger]

Changes:

• Display logs if thread execution failed with an error

Testing

• Modified unit tests
• Tested on local network

Performance

• No performance related changes were introduced

[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 6 lines in your changes missing coverage. Please review.

Project coverage is 83.18%. Comparing base (9e7ea8f) to head (b4d99cc).
Report is 4 commits behind head on develop.

Files with missing lines	Patch %	Lines
core/schains/monitor/main.py	80.95%	4 Missing ⚠️
core/schains/monitor/tasks.py	66.66%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1134      +/-   ##
===========================================
- Coverage    83.24%   83.18%   -0.07%     
===========================================
  Files          102      102              
  Lines         6310     6323      +13     
===========================================
+ Hits          5253     5260       +7     
- Misses        1057     1063       +6     

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