Cannot delete an execution cycle in a Test case

In Cycle Summary, we have created a folder, added tests, then deleted that folder.

The executions for the deleted folder still display in the Test and when we try to either Delete or change the Execution status, we receive an error.

I receive this same error if I use Search Test Executions view to

Screenshot:

Any suggestions on how to delete or change the status as we have Jira Dashboard reports displaying them as Unexecuted.