i just updated WordPress SEO from 1.0.3 to 1.1.* and I get the following message when accessing my page:
Fatal error: Using $this when not in object context in /SERVERPATH/wp-content/plugins/wordpress-seo/frontend/class-frontend.php on line 91
I tried all 1.1 Versions and they all result in this problem. Reverting to 1.0.3 => no error message any more. WordPress and all other plugins are up to date. Also, I deactivated all other plugins - the error persists.
On another page I do not have any problems with this.