Fix validator diagnostics

[Jayashsatolia403]

Changes

Fixes

Tests

Tasks to complete before merging PR:

• [ ] Ensure system tests are passing. If not Run them manually to check for any regressions :clipboard:
• [ ] Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• [ ] Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• 0chain:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Merging #1208 (ec38bb3) into sprint-july-4 (4f2674d) will not change coverage. The diff coverage is 0.00%.

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@@              Coverage Diff               @@
##           sprint-july-4    #1208   +/-   ##
==============================================
  Coverage          25.32%   25.32%           
==============================================
  Files                 82       82           
  Lines               9220     9220           
==============================================
  Hits                2335     2335           
  Misses              6595     6595           
  Partials             290      290           

Flag	Coverage Δ
Unit-Tests	25.32% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...ain.net/validatorcore/storage/challenge_handler.go	24.29% <0.00%> (ø)