Ok this has me baffled, I've been fiddling around for hours and can't seem to find a fix

After my 4age into ke70 conversion my headlights won't turn off regardless of where the switch is. As soon as I connect the battery the lights come on. I'm pretty sure I never touched any of the headlight wiring. Has anyone had this problem? And sudgwstiobs of what I can try..

thanks