Added null checks for queried event fields

[bshien]

Description

Fixed a bug with not having null checks for queried event fields.

Issues Resolved

Part of #75

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.84%. Comparing base (13bcfe3) to head (2efe6d3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #95      +/-   ##
============================================
+ Coverage     86.83%   86.84%   +0.01%     
- Complexity      315      317       +2     
============================================
  Files            69       69              
  Lines          1762     1764       +2     
  Branches         77       80       +3     
============================================
+ Hits           1530     1532       +2     
  Misses          195      195              
  Partials         37       37              

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