Editing Posts Help

[Yukino_AE]

Hi, I'm having an issue I was hoping to get some help on it.

When I modify (edit) a post and then go to click save or go advanced, nothing happens, then when i check the bottom left corner of my internet window there's a warning icon (Error on Page) which shows the following generated error (there errors are different for save or go advanced:

When I click go advanced it says:

Line: 279
Char: 2
Error: Object required
Code: 0
URL: http://www.anime-extreme.net/forumshowthread.php?t=34

When I click save it says:

Line: 300
Char: 3
Error: Object required
Code: 0
URL: http://www.anime-extreme.net/forumshowthread.php?t=34

I know this is just a theme issue because i tested a diff theme and it works fine. does anyone know what file i would have to alter to correct this issue?