Starting in Servosity version 7, the Scheduler and Auto-update services were rolled into a single service. It is listed in the Microsoft Services Snap-in as "Servosity (Standard or Professional) Services". On occasion the service may become hung, and require a restart, or may be stopped and needs to be started.
From the Windows Control Panel, go to "Administrative Tools" and launch the MS Service Configurator - "Services". You can also open the Run dialog and type in "services.msc" and hit "Ok".
Locate the service "Servosity Professional Services" (or "Servosity Standard Services"), right click and choose Restart (or Start if it's not running).
Once the service is in the "Running" status again, check your scheduler or auto-update logs again to see if there are any entries with a current timestamp.
Scheduler Log: C:\Users\<Username>\.obm\log\Scheduler\debug.log
Auto-Update Log: C:\ProgramData\ServosityPro\log\aua.log