Post formatting broken

Hi,

I have a problem with the website. I am not sure if it’s on the theme or plugin, but the formatting of posts is broken. For instance this post :

http://www.rsacourseonline.com.au/blog/the-key-to-fiery-cocktails/

Even if I add a space between paragraphs, it won’t show when I try to view the post. I still need to add
and nsbp; which is very time consuming.

Any ideas?

TIA!