Added a new page and can see the text

I am trying to add content to my about page, the second page in my blog and when I save it, the headings come up, the space to leave comments comes up, but the content does not, for some reason. I get a white space.

I have permanently deleted other vesions of this page and am having trouble changing the permalinks.

The page address is this: http://interviewiq.com.au/about-2-2

I have read in other posts that this may be because there is an extra space in the wp-config page. I have added and changed this page when I was trying to migrate my blog across to my host, so have no idea what this is supposed to look like.

Any help is appreciated

I am using the latest version of wordpress