I’m trying to water manually with my pixie but when I click “play” it just goes to pending and never starts watering. How do I fix this?

My pixie is leaking between the hose coupling and the unit (so screws on and seals and leaks between the seal and the main unit). Any ideas? Or is the unit defective?

I have a lot of mixed zones and am trying to decide what to categorize them as for smart watering. I have a zone that is an in ground avocado tree, grass, to avocado trees in large wooden containers and also, believe it or not, pumpinks. What setting should I use?