Canon 70D images and video, horizontal pink bars

[Wachowski]

Good day,
I have used ML for quite some time on my canon 70D. I had no issues. From Dec 2020 till March 2021 I was not able to use the camera and it lay untouched in the camera bag. After 3 months when I took the camera, I was surprised to see the LCD display was showing thick pink horizontal bars. It was the same when viewed through the viewfinder. To check, I clicked photos (RAW) and took a video ( normal MOV file). When I checked them on laptop saw that the pink horizontal bar is present in all pictures and video. I repeated my action after uninstalling ML but the results were same. I noticed the position of the pink bars keep changing with different picture. Has anyone experienced the same. Can anyone tell me what is happening to my camera.
Thank you