Tail lights and fog lights won't come on? But they work when i press the break?

Its a 1996 honda accord. Well just today i took off of the bumper to re-adjust it. I took off the taillights and the inner taillights as well to polish them, also when i took off the taillights i also replaced the licence plate bulbs and took off and polished my rear corner bumper lights too. So everything was going fine but when i removed the bumper there was a lil black cable attatched to it. It was grounded behind the bumper. I disconnected it thinking it wudnt be no biggie to put back on. I polished the lights and udjusted the bumper. Well today when i put everything back together they all worked fine ( fog lights, Tailights, breaklights and rear bumper lights) … But then i remembered i left a screw un bolted to the bumper. So i removed the bumper once more to screw it back in but while iwas doing that the lil black cable ripped. I thought it was no biggie so i took a gold plated ring terminal i had laying around and connected it again. And now the fog and all the rear talights won't turn on. They turn on when i hit the breaks but thats it. I also tried to re wire my licence plate lights but was unsuccessful. Could i have shorted a all my wire? Or messed up something? Or was it that black lil ground cable that came off? Maybe i didn't put it back on right? Please help thats my daily and i need it to go to work. Thanks!Tail lights and fog lights wont come on But they work when i press the break

The lights are not grounded. So, hook another ground wire to them.

Why do they work when the brakes are on? Because, lacking a ground, the tail lights and brakes are in series. This applies partial voltage to both the tail lights and the brakes (both would be a lot dimmer than usual).

Fog lightsTail lights and fog lights wont come on But they work when i press the break