REAR TOWING LIGHTS ISSUE

[dave1966]

Hi all.
I am hoping someone who may know what the issue is with the rear towing lights on our caravan.
I have attached photos of our issue, as I don't know how to put a video on here.

 

[Woodentop]

It looks as though you may have lost an earth - and given that your pictures are of the offside it s most likely that the missing earth is on the nearside.
It would be helpful if you could explain exactly what the lights are doing in the pictures - you know do but we don't.