page not diplaying

added a new page to my website and the page isn’t displaying in every browser. it works in Chrome and Firefox but is having problems in Explorer and I think Safari too. i created two pages and one works fine while the other doesn’t so i’m assuming i made some kind of coding error when i designed the page. my website is here: alisonshuman.com.
the page that doesn’t work is: alisonshuman.com/book/.

any help would be greatly appreciated!

-alison