need help with my keyboard

[Deregulated]

yo whatsup guys so im a poor pleb and my laptop is ultra old so some of the buttons on the laptop keyboard dont work , so i use plugged in keyboard , anyway . My problem is the [E] button on my laptop keeps pressing itself like million times at random times and i have to press it and hold it for a couple of seconds for it to stop and then it will start again , Do any of you have any idea on how to deal with this problem , i tried removing the Key and even cleaning the under key but it just kept doign it.