Sitemap error

Hello!

When I load the sitemap pages, it’s loading this:

This page contains the following errors:
error on line 2 at column 6: XML declaration allowed
 only at the start of the document
Below is a rendering of the page up to the first error.

It happens only whith this theme.
Is there anyone that can give a clue? Thank you!

• This topic was modified 6 years, 7 months ago by Germont.

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