I’m having a very similar issue.
I made sure to check my php version – everything is at it should be on that front.
I updated and immediately got this in the header of my website
“[responsive-menu] [responsive-menu menu=’location-menu’]”
I read something about editing shortcodes in the header to have an underscore instead of a dash ([responsive_menu]), and when I did that the three lines to pull up the side menu when on mobile showed up, but clicking the link does nothing.
It hasn’t completely broken my website, so I assume this just means there are things I need to change on my backend.
Thanks.
