Bad or misadjusted stop light switch
Assuming you mean brake lights, the brake light switch is broken or out of adjustment.
Read your owner's manual. Your answer can be found there. But you will find the answer is not there.
Check the level of brake fluid in the master cylinder Make sure parking brake is fully released
Just guessing here, but wouldn't that be the 'Hazard Lights'?
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One or both your break lights are no longer working.
Blown fuse Bad stop light switch Burned out bulbs
The bulb has broken.
It means the engine has a problem.
Oil Change Time
If the brake like of a 1991 Honda Accord turns on the vehicle will need the brake systems checked. Another thing to look for as well is the fuse for the e-brake.