Alignment issues since update

Hi, hope you can help. I've recently updated WP and the Simple Catch theme. There was quite a lot of issues with the update but I'm almost back to where it was originally. I'm having two remaining issues though. 1. The social sharing icons at the top (FB, Twitter and Insta) no longer float so there's a big gap between the between the height of these and the logo underneath - originally, the logo (Grampian Hospitals Arts Trust) was aligned with the sharing icons. 2. On most, but not all pages the menu bar to the left has no margin and is 'stuck' to the left hand side irrespective of how big the browser window is: This is how it SHOULDN'T look: http://www.ghat-art.org.uk This is how it SHOULD look: http://www.ghat-art.org.uk/category/whatson/exhibitions/ Please help if possible! Sunil