Hi Prasanna,
Which protocol you get this error message for?
Do you have a custom code (code added manually) in the script?
Can you please give us more details about the error message you receive?
If in the pop up window there is a details button can you please provide a snapshot what it shows?
Alternatively you can check if there is an error message available in the Event Viewer.
This problem can be result of an antivirus or a hooking software. Does the issue appear if you disable the antivirus or the hooking software in your environment?
Kind regards,
Vesela