Red lines going true my blackberry keyone screen could someone tell me what I could do

My blackberry keyone screen it have red and green lines going true my screen anyone noes how to fix it

That's a hardware issue. It could be anything from a bad display to a loose cable connector inside. There's no immediate fix for that unless you're willing to take it apart and replace the display or poke around inside yourself. Your best option is a repair shop or a replacement device.