My rear nightlight(the tail lights) don't turn on

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My rear nightlight(the tail lights) don't turn on, also when I hit the remote to lock the doors, the lights no longer blink My rear brake is working. I can not drive in night time because of this problem. I checked all the fuses and changed all the bobs, still not working. Please help me. Also inside of my car gages light is working and side panel( drivers right) not light as well. Front nightlight are okay. What could be the problem? Thank you in advance.