Erroneous results

Guys a couple of things, I was hoping to link my sub site drumroll.davidedwards.com.au which is now mapped to drumroll.com.au but cannot do so. Also I'm getting strange results with my page like letters appearing on the menu instead of the sub menus and search box and no icons in the social media links. Every time I try to force https it bounces the site takes it offline. I have a wildcard ssl as well as one on the domain itself. It says there is an improper setup but I have removed and reinstalled also experimented without an ssl on the drumroll.davidedwards.com.au URL as well. I want it to work using an ssl cert and not have the strange results I'm getting, can you help fix this issue?