Pressure Pool Cleaner and Equipment

We recently purchased a house that has a pressure pool cleaner. We have never had one. It was working good one day and then it stopped. Not sure if I moved around the valves and it caused it to stop going. Also could use some insight into the configuration of the system. I am attaching pictures. Any help will be appreciated.

Hey lars can yo provide better pictures of the the font so we can see the valves but if you didnt touch anything it could as simple as the pool cleaner just pick up something and got stuck.