AOC Monitor - Thin Blue Vertical Line

[2X]

Hello,
I have the below AOC (E2275SWJ) monitor and always shows me a thin blue vertical line.
I moved back and forth the connectors and the COF tabs but the vertical line didn't disappeared with any movement at all.
Do you know If there is any solution?

[wasedadoc]

There are not enough connections to have one per column so almost certainly this is a fault within the panel and unfixable.