Ants issue

Hi there,

I'm having an ant problem is a recent appartement I bought. My lights are blinking when I use them from the switch in picture. I'm trying to fix by giving them poison to bring back to the anthill.

My question is : Am i doomed with those wires ? Can i "fix" them anysort ? Isolating tape ? Or should I just replace the whole thing if that's even possible ?

Thanks for your help, sorry if dumb question 😬