Why is my website’s mobile menu hamburger button not opening when tapped?

A mobile hamburger menu freezes when duplicate jQuery libraries conflict, when aggressive optimization plugins defer critical navigation scripts, or when unaligned CSS z-index layers place hidden elements on top of the button.

“This is almost always duplicate jQuery libraries stepping on each other, or an optimization plugin deferring the wrong script. I’ll isolate the conflict and have your menu tapping open again within 24 hours for $99.”
— Jeff Bollettino, Managing Director, Ignite Conversions