Business Rule: Error:Network error []: Connection has been closed

Summary:

Business Rule Runs into an Error "Error:Network error []: Connection has been closed" and I couldn't find where it goes wrong in the code.

Content (please ensure you mask any confidential information):

Business Rule Runs into an Error "Error:Network error []: Connection has been closed" and I couldn't find where it goes wrong in the code.

Weeks before, the rule can be excuted and give the correct result.

I am not quiet sure if it is about the upgrade of Essbase Version into 21.7.4.0.0.004 or not since it made one of my rule result incorrect once this week.

Version (include the version you are using, if applicable):