tail light/ brake light problems, help

[Tactical185]

Need help please, 71 Cuda convert restored several yrs ago. Tail lights/ brake lights had been working fine. Recently stopped working. No tail lights, brake lights, turn signals or dash lights. When activated, the rear flashers do work. Head lights/ front turn signals work fine.
I've replaced all fuses and all rear light bulbs, still not working. What am I missing?? thank you

 

[Challenger RTA]

Check the plug in the drivers kick panel might be loose. maybe a ground.

 

[Katfish]

https://postimg.cc/kDK6gbxf][/url]

 

[Tactical185]

very helpful, thank you, I'll give it a try.