LG OLED B6 vertical black bar / line

LG OLED B6 vertical black bar / line

My LG OLED B6 from early 2017 from one day to another suddenly has a vertical black bar / line all over the right side of the panel. Inside this bar there is a thin white line. It happens on all sources and is there all the time. Do you have any suggestions on what I could do by myself to fix it? Thank you and alle the best! Here you find some pictures: https://www.dropbox.com/sh/14d0ocmhi31is...

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