1) Menus can't be accessed t/ phone & Square under my Main Page

Dear all,

I’d like to ask you for a help (two kinds) on my website.
1) If you have a time to look at my website: https://www.iquotewisdom.com – i can’t see my menu on the top bar when I open it from my phone.
and
2) On the bottom of my main page, there is a square thumbnail (turns to brown when I point my mouse on it). I want to delete that but really need a help on that.

Thank you so much in advance for your help.

Regards,
Sandika