Turn signals light on when the brake pedal is pressed- 1969 Dodge Dart

I’m having an issue with my 1969 Dodge Dart Custom/ 2 Door. Stock slant 6 225 3.7

My 4 front turn signals stay on. They don’t flash unless I use the turn signal.

Every time I press the brake pedal, the turn signals lights go off.

They don’t flash, they just stay lit when I turn on the car.

Any ideas will help! Thanks fam!