ARIS PPM Session time out

Hi,

I have a problem: After a few minutes (2-3 mins) i got this error message in ARIS PPM:Image may be NSFW.
Clik here to view.

Image may be NSFW.
Clik here to view.

Its very complicated to work like this, because I have to quit and relog every 2 mins. Where can I modify the client session time-out?

Please give me a solution how to solve this. Thank you!