I’ve tried ever switch the awning light over the door can be switch of but the other light on the opposite sid won’t switch off
What year is the caravan? The other switch for the offside light also lights up the light on the A frame if you have one. It works off the 12v so if you switch off the 12v, it will switch off so there should be no issues when it is on storage.
If you prise off the surround for the switches, you can remove the actual switch, but make sure that the 12v is switched off as it can give you a very nasty jolt even though it is only 12v. If you have no electrical knowledge whatsoever, get someone with a bit of expertise of electrics to check the switch. If the switch is faulty, you will need to change the whole switch.