Role stuck in WF_ROLES table

Hello Everyone,

Need your expertise for one of my issues.

There is one custom workflow which is working as per the expected functionality. This workflow is basically an approval workflow.

The process is that whenever the workflow is initiated, it goes to the first level of approver. After approval, it goes to 2nd level and so on till 4th level. When this particular workflow was initiated for the item key for the first time, there was no 2nd level of approver in the system and hence it failed at that point and it got stuck.

I have done the necessary setups and now all levels of approver are present in the system. So we re-initiated the workflow but this time the workflow is showing the error as "Role Already Exists".