OOB Monitors appear to be missing

OOB Monitors appear to be missing

I just upgraded my opmanager to 7021 and now when I try to add a performance monitor to a server, there are not in the list. All I get is a single line of text saying click here to add a custom monitor. Right now I am trying to add a simple disk usage monitor to a newly discovered server. Furthermore, if I remove an existing monitor and try to readd it, I cannot find it anywhere. This happens no matter what category of monitor I try to add.

How do I get the monitors back?

                  New to ADSelfService Plus?