Pink vertical line on iPhone screen

so last night a pink vertical line randomly appeared and I just dismissed it and didn’t really worry because it went away after a few seconds and this morning when I woke up it has been on my phone still throughout the whole day and I’ve tried everything I can do to get the line off I’ve tried resetting it and updating it which took an hour I tried many solutions and none of them have worked but the line kinda got thinner i’ve had my phone for a little over a year and I haven’t really had any troubles before but now my face id is broken and it keeps on powering it off

[Re-Titled by Moderator]