Why is my admin/backend menu not working on mobile?

Hi!

My admin/backend menu has stopped working on mobile. When I click on the three lines in the top left to open the menu, it does nothing.

I’ve tried closing the internet tabs and reopening, logging in and out of shopify, clearing cache and browsing data, updating phone, and restarting my phone. I’ve also given it a couple of days and tried all these things many times.

Has anyone had this trouble before and managed to find a fix? Or have any other suggestions that I can try?

Thanks!