Has anyone else experienced this error when adding a feedback participant?

Summary:

ORA-01427 error received while attempting to add a feedback participant.

Content (required):

We have ran in to a problem that stops users within a specific location in our organisation from adding a feedback participant.

Upon clicking the "Add" button the following error is displayed:

Unfortunately I am unable to access the incident log and our support ticket is not going well so thought I would pose the question here.

Many thanks

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

23A