Getting Error code: d36c4dce5465641d50732df9eb9d9e17868dd80c

About half a dozen pages won't load, just show that error code. I can search for them and find them, but can't go to them. I can also drill down to them through the structure but they still give the error message.

I was playing around on friday and tried installing a form on a page. I think this may be what caused it, as the pages that won't load seem to be related to this page (I'm guessing).