SQL Server Agent Error (avastsbc)

The SQL server agent (avastsbc) is set to automatic, but the service does not start on a Windows SBS 2008 server running Avast Endpoint Suite Plus. If you attempt to start manually it generates the following error:

Windows coul dnot start the SQL Server Agent (AvastSBC) service on local computer.

Error 1067: The process terminated unexpectedly.

Any advice? Not even sure where to start.