Glitch on robot

I have a basic claw bot that i am using and when I press channel 6, top button, the one used to open the claw, it glitches up and moves forward and back! Please help me!

I’m sorry but I missed this post, have you sorted out your problem? Are you using the default driver code or something you have written yourself to control the robot using ROBOTC? If you have written code then perhaps you could post it so we can take a look and suggest a solution.