I have green line on my rog 5 display

[nanthakumarch55]

Rog 5
VERSION : ww_18.0804.2109.176
Its been 1 Month I have been using rog 5 but recently I noticed some green line one my rog I don't know any thing about it . that it is an software issue or hardware problem help me ..... I just bought this phone for50k for gaming
Now I have this issue ....what should I do

[ChacoTac0]

I have just updated my ROG 5, 2 days ago and there is bold green line  and it's now turned into white line. Is there any solution