Enumeration operation might not execute

Hi,
I am getting this message while adding a row in to the data table based on the if condition.
“Collection was modified; enumeration operation might not execute”
Can any one help please.

Installer(.exe or .msi):

License type(Free, Trial/License code):

Studio/Robot version:

Current behavior:

Screenshot:

Hi @haris.mahmood

Check this

Collection was modified; enumeration operation might not execute

Thanks
Ashwin.S