Value can not be null error after successful completion of process due to database connection

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After completion of process i am getting this error. I have used database connection in the process. There i am retrieving some data in datatble.
Please help me to understand why this error is coming and what I should do to get rid of that error.
Process is completing successfully but getting this error at the end.

2

hello @Arindam,

If i am not wrong,at the end of the process ,you are passing the input argument without data.So thats why error came out.If you created unnecessarily,please delete that and execute it.

Thanks