Central locking huge problems

[kosty000]

I own a 2012 Astra j and I have had a lot of problems recently with the car locking itself when the drivers door is moved. It has mainly been an intermittent problem, but now it happens 90% of the time I open the door. It does not matter if the car is: Running, Ignition on, or being unlocked; but when the drivers door is opened, the car will lock and unlock itself multiple times. Its causing me a lot of issues as I have already been locked out twice
If anyone else has had similar problems and knows the cause and/or how to fix it, I would be very grateful for some recommendations.