Two Fuzzy vertical lines & Unstable touch functionality

Hello...

I'am facing an Occasional two fuzzy vertical lines and some unstable touch functionality like ghost touches and unresponsive screen,However, when the two lines appear the touches seems to be working perfectly except for the region where the two lines , when the two lines are not appearing I may face a ghost touches and unresponsive screen, only in the right side of my screen, moreover, the adhesive stripes of the battery i guess they are not working anymore because can hear the battery moving in it's housing, and also the front panel covering the LCD connectors with the board is missing...

I'am 60% sure that this is caused by the Electric static charges from the battery..

can the Iphone 6 series have such electric static charges problem?

What do you think should i do to fix this?

update:

So I've tried to re connect the LCD, I faced some problems like :-

1- After reconnecting the 2 Lines at the right side disappeared, instead many other fuzzy lines appeared,

Fix: just disconnected the LCD and cleaned the Flex cables and reconnected again, the lines seemed fuzzy then but i guess they will disappear after recharging.

2- The main problem is, Now i have a vertical area where the touch is fully unresponsive, No more ghost touches but there is a vertical area where the touch is unresponsive..

any ideas??