If the duty of care has expired, you will need to check the claimants Insurance details using the following process:
Select Settings
Select Users, followed by the user account
Select Edit
Select Insurance Details
Check these details as the error indicates that the insurance number may have expired. These will need to be updated to be current.
Once you have finished, save the record
Any existing claims with the issue might not be resolved (so these will need to be removed and re-entered), but anything created after the changes should now now show this error message.