Mobile Navigation Menu and Button Not Working

Dear Team,
Can you help me please my theme not working properly? especially the mobile navigation menu and button.
I’m using Bimber - Viral Magazine WordPress Theme by bringing the pixel and my website URL is
Hope you will help me on urgent.

@bringthepixel may help you on the forum but you should check the link below for the support:

What do you mean? Can you solve my problem or not? why I buy your theme?