I am using th Blogs MU theme. iRecently i have lost some

I am using th Blogs MU theme. iRecently i have lost some of my template options. It used to have a "wide" full page option. Virtually every page on my site are built this way. The option has now disopeared.

Then if I make any changes to a page, it kicks it into the "sidebar format" and screws up the page.
How can i get the "wide" full page option back?

https://theonlineretirement.com/privacy/promotion/

The above link is the page I am referring to, which was once full page. The Youtube video image is not supposed to be in there, as it was orginally a full page.

I previously asked this question on another post, but it did not get resovled properly, and I have not recieved a response for over 24 hours.

Thanks

Greg