Fix transaction error processing

[Jayashsatolia403]

Fixes

Changes

Need to be mentioned in CHANGELOG.md?

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• 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):

• blobber:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 16 lines in your changes are missing coverage. Please review.

Project coverage is 28.77%. Comparing base (d25ab4f) to head (b06968e).

Files	Patch %	Lines
code/go/0chain.net/sharder/worker.go	0.00%	9 Missing ⚠️
.../0chain.net/smartcontract/dbs/event/transaction.go	0.00%	7 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #3195      +/-   ##
===========================================
- Coverage    28.77%   28.77%   -0.01%     
===========================================
  Files          405      405              
  Lines        67151    67157       +6     
===========================================
+ Hits         19323    19324       +1     
- Misses       45490    45493       +3     
- Partials      2338     2340       +2     

Flag	Coverage Δ
Unit-Tests	28.77% <0.00%> (-0.01%)	⬇️

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[dabasov]

lgtm