I have just upgrade my OTRS form 3.3.3 to 3.3.7 as it will fix the scheduler issue when the server was unplan shutdown.
At the moment, I using Windows server 2012 R2 with OTRS version 3.3.7 already but the scheduler issue still happen.
The error said that: Scheduler process is registered but might not be running
When checking in the Windows Service, I found that the OTRS Schedule was not automatic start and I must start it then the problem is solved.
May anynone show me the way to fix this issue forever. I don't want to go to service and Enable OTRS scheduler everytime I shutdown the server.
I also found the issue below at the log file:

Please help me with this issue.
Many thanks!