Try running a zone from the controller’s touchscreen. If it works from the controller and doesn’t work from the app then check that you have linked your controller’s serial number to your account (see previous section for details) and check your controller’s wireless status.
If your old controller had a master valve (sometimes referred to as MV) then you must configure a master valve in the app and wire this to a spare zone on the controller. View master valve instructions here
Check that your wiring is correct. If no zones start then check that your COMMON wire is correctly cabled.