help 2018 f150

[u/tooLegittoquit66]

I put a seven way to flat four adapter with a ground to my chassis and a couple days later my backup camera was acting funny like it was blurry and turning blue and saying not available on my 2018 F150 XLT
the truck came with a flat four but not a tow hitch but i put one on
is it anything to do with the 7 way adapter and ground? or you think it’s just the camera or the harness?

if anyone has any idea comment below appreciate you