Error Message : Traceback (most recent call last): File "addApprovals.py", line 30, in <module> if ApproverStage1 in requestObj['udf_fields'] and requestObj['udf_fields'][ApproverStage1] is not None

Error Message : Traceback (most recent call last): File "addApprovals.py", line 30, in <module> if ApproverStage1 in requestObj['udf_fields'] and requestObj['udf_fields'][ApproverStage1] is not None

Hi All,


i have error : 
Traceback (most recent call last): File "addApprovals.py", line 30, in <module> if ApproverStage1 in requestObj['udf_fields'] and requestObj['udf_fields'][ApproverStage1] is not None: KeyError: ...

i'm using version 13.0 Build 13001
on linux version 20.04
here's i attached error screen shot and script 

Need your help to solve this one,
thanks.

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