[Fix] when log_with_hierarchy is True, the running error appears in _collect_scalars for log processor

[HAOCHENYE]

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Motivation

Fix #1082

Modification

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Checklist

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1085   +/-   ##
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  Coverage        ?   76.27%           
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  Files           ?      139           
  Lines           ?    11239           
  Branches        ?     2262           
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  Hits            ?     8572           
  Misses          ?     2303           
  Partials        ?      364           

Flag	Coverage Δ
unittests	76.27% <100.00%> (?)

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