A user is getting the following error whenever they try to view or update their page.

Fatal error: Call to undefined function rvy_get_option() in /home/haxbyand/public_html/blog/wp-content/plugins/role-scoper/cap-interceptor_rs.php on line 562

I created the user and a page for them to edit a couple of weeks ago. The only permission they have is page editor for this page. They have this permission by being member of a group I created at the same time (they are the only member of the group). I tested the users login and permissions at the time a created them and they worked fine.

Since creating this user/group/page, I updated to the latest version when it was released a couple of days ago.

The user didn't get around to trying to update the page until today. They made some changes then tried to preview the changes. This is when they got error for the first time. The error continues to occur for them now everytime they try to view or update the page.

There is an autosaved version of their changes, but i reluctant to make them the current version until I get to the bottom of this problem.

Any pointers or suggests very welcome.

Stephen