Whenever I build up my lynx there is a weird white line that goes down the left side of the screen

[u/Accurate-Advisor128]

I just bought this system off marketplace the guy said this is never happened before when I messaged him about it. It’s in very good condition, but on the first time a boot up on the left side there was always like weird lines going down the screen after a while it faded, and then all that was there was a white line. The white line also disappeared after some time, but you can still faintly see that stuff whenever I look closely at the panel screen, I’m wondering is this an issue with the display? Do I need to get a new one or should I just return this panel or can I fix myself?