Nice TOO 3000 Gate opener not closing

[Sully]

Hi all, I have a Nice Too 3000 swing gate kit (believe it’s running off the Nice A60 control box). Only been installed for 18 months. For some reason the gates are opening but not closing and freezing once they’re open. I think it may have something to do with the photocell (internal) one. It’s no longer ‘clicking’ when walking past it. It’s lit up fine and I’ve cleaned it and the reflector plate but no luck. Can anyone advise on what to do please? Would really appreciate the help.
Thanks