Mobile menu inactive on collections pages

I am having an issue with my mobile menu. It works fine from the homepage, product pages, and blog pages. However, when I try to use the menu from a collection page on mobile, nothing happens. I have no idea how long this has been going on. Any help would be greatly appreciated.

Homepage (mobile menu working):

https://www.threshseed.com/

Collection page (menu inactive):

https://www.threshseed.com/collections/melon

Thanks,

Becky

It is due to this error collection page.

it is like developer have added something named melon JS and that is why it is creating issue