Absence Planning 23C - Enabled but Getting 'Exception during RestAction' Error Message

Summary:

Error when accessing Absence Planning and absences not showing

Content (required):

Hello all,

I have enabled Absence Planning and can see it when logged in as a manager, however the team's absences are not displaying and I am seeing an error notification. The error says 'Exception during RestAction'.

Does anyone know how to fix the error?

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

23C