Error in LMDB Landscape Verification - Service is unavailable

In Solution Manager 7.1 (SP 10) I am suddenly getting the the following err:

Service is unavailable. Pls use Maintenance Planer to do verification

The message occurs when attempting to perform a Verification Check on any Product System regardless if is ABAP or Java, and has one or multiple Technical systems within it.

Has this service been disabled, or have I managed to shoot myself in the foot?