sidebar, jumped within container?

Hello!
I can’t remember doing any changes, but all the sudden the sidebar appeared within a div-tag or something. I can’t get it to move. It’s not the same for all pages, it kinda jumps around… take a look yourself at https://www.ecolective.org/ on the index page it’s at then end of the page. Any suggestion on what might have happend? I want it to be to the right on my page. I’m using a tweaked version of the green-splash theme.

/thenx, j

EDIT >>>

I got it all figured out… not why it suddenly moved but why it was where it was. The divs was fucked up I think. How that happend? I dont have a clue, really I dont…