need help with my direct bikes 125cc cobra brake light

Hi, so I'm back on here again after another problem with my bike appeared. Anyways I've got a problem with brake light being stuck on and I have no clue how to fix it. I'm 99% sure this has something to do with my rear drum brakes because sometimes they stick when I'm pushing my bike forward. anyways I'm wondering if theirs a way to disable the brake light sensor for my rear brake (so only my front brake activates the brake light) for the time being as fixing drum brakes is to complicated for me and will have to sort it at a later date.

 

i also dont know where my brake light sensor is so if anyone is familar with gy6 scooters please lmk

 

Drum brakes are easy.
Detach the brake cable from the rear drum arm and push the lever forwards. If it sticks in that position look at where it passes into the back wheel hub. Inside of there is where you tend to get a load of crap and it binds up inside the hole.
Back wheel off, remove the hub, take the brake lever out of it, give it a good clean and grease up, put it back.
Easy.

 

It's under the rear brake lever on the bars.
But don't disconnect it, it's an MOT fail.
Sort the problem, don't work around it.