Help! Why won't my 2001 Spyder's tail lights or brake lights come on?

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I have checked the fuses in the main panel and that isn't the problem. I replaced a few of the bulbs so that isn't the problem. The headlights come on just fine. A little background: The tail lights were sometimes coming on and sometimes not. Sometimes one would come on and I'd tap on the other and it would finally come on. A few months ago, I got in my car and had a dead battery and the culprit turned out to be that my brake lights wouldn't turn off. So I fixed that after watching a youtube video and it worked like a charm. I went through a period of a few of months that didn't drive the car at all. When I did decide to take it for a spin, I found about 4 inches of water in the floorboard. My top apparently leaked because leaves had plugged up the drain filter...ugh! My radio no longer works but I'm not worried about that right now. I got the water out and cleaned it all up and let it air out for another month. I finally jump started it back up today and drove it around but neither the tail lights nor brake lights come on. I am not a mechanic but I am pretty good at fixing things if I know what to fix. If anyone has any ideas, I would really appreciate it. If it's too complicated I'll leave it to a pro but if it's just something minor I'd rather save my money. Thanks!