Keep "Remote Directory up to date" terminates spontaneously

Hello,

I'm using "keep remote directory up to date" to sync folders 24/7. Unfortunately the process/app exits from time to time. Sometimes it is running for days and sometimes just for some hours until it closes. I can restart it without any problem but as I don't know when it happen, I need to check running state every hour. Any idea how I can identify the issue?

BR

Attached you can find a log file. The last entry is when the application has terminated. For me it doesn't look like it terminates by accident. Unfortunately I don't have an idea why it does.