1999 Camry break left light issue

Hello I have a 1999 Toyota Camry with 2.2 liter engine . It’s a 4 door LE model .
My left break light is having a issue where it won’t work . If I walk up to it and slap it really hard on the lens it will start to work again until I hit a bump or or turn the car off or something and then it stops working. Any one have any tips ?
I’ve tried to replace in the bulb it looked inside the socket checked the pens made sure they’re all clean and making great contact. I’ve also checked the wiring to make sure anything was not broken and also checked the harness running into the back of it Make sure nothing was broken there .