Issue while running business rule - An error occurred while running the specified calc script

Summary:

Issue while running business rule - An error occurred while running the specified calc script

Content (please ensure you mask any confidential information):

We have a clear script in EPBCS which was running ok until last month. We are trying to run the rule from the rules card but when we launch the business rule it is throwing an error

An error occurred while running the specified calc script. When we hit launch, it should be prompting for Scenario, Version and Year.

There are no job details for the error as well.

Any insights what the reason for the error could be?