I checked my site today and for some reason my right side bar shows up at the bottom of the page, I haven’t made any changes to the theme except the most recent update, can someone assist me. thank you http://www.gevastation.com
The errors come from either the theme or plug-ins or your content. You need to look at the validator results — each error tells you where it is — then you have to sort through the code on your page and figure out where it is coming from.
A lot of your errors are repeats — caused by your social media buttons — but those are probably not really causing visible problems.
As I said, look at the errors that have to do with open or unclosed or extra tags — lines 586, 560, 599, 1211, 1711. Those are likely causing the sidebar problems.