Have two menus showing up on mobile devices-can't delete it

Hello! There are two duplicate menus that pop up when viewing my site on a mobile device.

I’m using the “Pinboard” theme and it appears the default menu is the bar across the top. You can see this on a computer (on mobile pops up as that little square with lines indicating there’s a menu behind it)

https://partyallthetimeusa.com/

This is the menu I want to keep. The other menu is a duplicate of the bar menu and on a phone it is listed smack in the middle of the site overlapping text. You have to view on a phone to see that one. The second menu doesn’t appear on the site when viewing on a computer.

Before reinstalling the Pinboard theme (long story) I did create a “Custom Menu” using a widget and adding it to the Appearance section. But after Pinboard was reset to default settings, their bar menu popped up and I deleted that widget I had installed… but it still shows up on a phone.

Also, the main title of the page shows on main site, but not on a phone.

And, I can’t get the font from the main page to appear on all pages without going in and changing each one by hand. The font in the “footer” won’t allow me to change it either. Feel like I’ve troubleshooted and changed so much within the settings to alter the above issues but so far no luck.

And guidance would be so helpful! Thank you! ??