Vertical black line on MacBook Air M1 screen

Hello,

I bought my macbook Air M1 nearly 40 days back from today, yesterday while i was watching YouTube suddenly a black thin vertical line showed up on screen, i worried and restarted my macbook but still it's there on screen. I use my macbook very much less just 6 battery cycles done, i never used it very intensely there's not even a single scratch on Mac i handle it very carefully. What should I do please suggest me if anyone knows.