Menu switching on its own uncontrollably

Hi, i owned a Sony A7ii for 3 years now, brought it 2nd hand. Had no issues in the past 2 or 3 years.

BUT as of today seems to have minor issues the past days but today it worsens the Menus are switching uncontrollably on its own and sometimes it goes back normal.

I tried to switch ON and OFF the camera or change the battery and remove the cage etc . seems to work for a bit in a few clicks but will begin to switch menus again....

Its very risky to use now...maybe it will delete all the files and photos.

Anyone here having the same ISSUES with their Sony A7ii camera or knows how to FIX this problem?? Would be much appreciated. Thank you in advance :)