Multi-Step Slider Form Issue

My website has issues with it’s slider form research survey.

The buttons work perfectly fine to go from question to question but when you press Enter on a keyboard the Mask or slider bugs out and doest follow it’s path and ends up stuck between to slides.

I think I either need custom code to disable the enter key when the research survey is opened or my slider is poorly made.

Either way I could use help!

TIA

Live Project

Designer Project