Issue 1: I'm having trouble adding the header image and for some reason it's not coming up.
Here is the header image I'm trying to display.
Where the image lives: http://semeeroh.com/home/images/demo/header/header1.jpg
Issue 2: In the "My Events" section of the website, I can't get the image to change for "The Laundry". This is the image it should be.
Where the image lives: http://semeeroh.com/home/images/demo/team_3.jpg
It should be this image: 
I am very familiar with Gavick's templates and have been working with you for years. But for some reason, I'm not able to get the header image to display. I have cleared my cache many times, and I'm checking every browser (Safari, Google Chrome, Microsoft Edge, IE, iPhone, and iPad).
I would greatly appreciate your help as soon as you can. This website was supposed to go live a few hours ago.