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?