Fix error messages to match AWS API expectations

[synfinatic]

• ECS Server now generates properly formatted error messsages.
• Remove debug error logs

[codecov]

Codecov Report

Merging #546 (d5ed41a) into main (e0d22bf) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #546   +/-   ##
=======================================
  Coverage   80.84%   80.84%           
=======================================
  Files          25       25           
  Lines        2949     2949           
=======================================
  Hits         2384     2384           
  Misses        496      496           
  Partials       69       69           

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