Attachment block trouble

If I enable the attachment block on BWS Contact Form, the right sidebar is pushed below all content and to the left. Used to work, last year and the year before. So what changed?

For right now I have the attachment block disabled, but hoping there is a fix. Would be nice if my visitors could send content including pics and text articles. Like I said, it has worked in the past. Margins, layout, headings, have not been changed on my site for at least 3 years.

The page I need help with: [log in to see the link]