There’s one more change I would suggest. Have a look at this:
The SVG map is being loaded from http:// and that’s causing this error. Your domain is on https. Having the urls on https:// will mitigate this. After that, the top arrow SVG at the bottom of the page should be visible. This SVG fix is absolutely necessary (along with making all http as https)
I understand that you wanted the top background as white to align with the logo. I have two alternatives in mind.
I removed the white background in the logo with an online tool. This should blend the logo with any background image without having to use any workaround for other elements color on the page.
The second alternative is to make the menu button lines as black or any other color of your choice. The class to edit is this:
The ‘black’ is what I added. It would be #FFF for you.