Why am I receiving ticket error after creating a rule for a team-managed service management project?

[Youmna Alomari]

I recently created a team-managed service management project (Finance Experience Portal); however, I'm experiencing issues with the automation. I created a rule using one of the built-in templates (When an issue is created → automatically assign using balanced workload). The rule worked once, but after that, it is returning an error, and the assignees are not receiving any notifications when the issue is created.

Additionally, I have a manager approval field in one of the requests in the portal. However, when I add the manager's name, they don't receive any notification that they're requested for an approval, and I'm not sure how to reflect this approval in the ticket. Can you advise?

Thank you!