Left Side Mobile Navigation Not Working

Hello, I currently have the Catch Flames Pro theme installed for my site www.WeekendPick.com. Currently the left side mobile navigation is not showing when I open the site in Safari on my iPhone 6. Also the arrow up icon to bring the user back up to the top of the page is just a square. This is a new problem and once worked fine in Safari on my iPhone 6. Please note that the site still looks and works great in Chrome on my iPhone 6. Do you have a solution to this problem? Best, Alex