Strange parse error... please help

Everytime I try to edit into a block (by clicking on “edit”) the popup that should load up doesn’t and instead I get a red notification on the top right that says “Oops, something goes wrong (parsererror). Please try again.”

Anyone experience this before? I can go into product pages just fine, its just when I try to edit a block does this occur.

This also occurs when trying to enter into other fields (i.e. admin ->payment options → credit card).

Nevermind. Fixed it. It’s cause i changed the jquery script to try to update it to a newer version.