Why my clio classic 2005 série suddenly turns off?

Why my clio classic 2005 série suddenly turns off? My Renault Clio Classic 2005 série sometimes turns off on its own when I am driving, so I have to unplug a cable (check first and second picture below) which is attached to the electrical unit and plug it again so it can start. What should I do? I had my key capturer replaced ( check third and fourth picture below) but it seems like it didn't work. Any solutions?