Tail light issue!

So i was told the other day i had a brake light out on my truck, so i changed it out didn't think anything else about it. then last night i notice the parking light is out on the same light as well as the brake light not working?? I also notice the tag light is out on the same side (its LED so it shouldnt be out as the other one is fine). Its the passenger side so my thought is power isnt getting thru to that side somewhere. checked all fuses and are good. cleaned connector to tail light. Could this be an issue with the relay? im stumped since its just one side. Turn signal and reverse work fine.

Any help is appreciated. This is just one of those annoying things i cant figure out!!

 

Do you have a tow harness installed? Maybe a wire got pulled from that?