add button not working amoung other things

Hi,

I’m having the same problems. Deleted all plugins on ftp etc , deactivated them as well. Do not wish to change to theme twenty eleven as when I preview it , its nothing like my page and do not want to ruin my site by switching as tried this once and took forever to fix.

So far seems like a lot of bugs as a lot of things are not working properly, I use CORE photography theme from themeforest , have emailed the designer to see if its on his end and needs to be updated.

Any ideas welcome