Prezi will not allow me to edit anything.

Prezi will not allow me to edit anything at all. It comes up with an error stating "Your last action could not be performed! The content you wanted to modify was too big or small to fit in the prezi canvas." Can this be fixed? I have a company presentation I am working on and need help asap. http://prezi.com/djbcc-1afb44/center-stage/

Thank you!