If you open the CMC shell, go to Manager and then do a WATCHLOG, what does the manager log say?
Is the disk full? (Go to APPLIANCE --> DISKUSAGE)
Is the store for the VM disk full?
You should probably be opening a ticket with Support. All of the support numbers are listed on our website at http://www.solarwinds.com/company/contact.aspx
Once you reach the menu, pick option 3 for Technical Support. Have your Product and SolarWinds ID (SWID) ready