Issue with my TV screen

[kicooo]

I’m desperately looking for a solution for my led television. Suddenly, those lines came up without any apparent reason.

https://uploads.tapatalk-cdn.com/20190103/da7a1edd9fbd00c275ae1f1437aff523.jpg

https://uploads.tapatalk-cdn.com/20190103/b23848e4cfa467b904926d0fc8194586.jpg

Any ideas please?