Quick Wordpress fix

I have the finance plus Wordpress theme on a site and just updated it but has changed the way I used to update the site.

I have a few glitches and updates to do so was looking for someone who can help. Are you familiar with this theme and would you be able to look into it?

These are the issues:
1. Some kind of menu that appears in the header
2. I’m trying to add a logo in the header
3. “Customise” function under “Appearance” does not seem to be working

Could you quote of this is something you can fix?

Thanks

Sanj