[baydream]

Hi All
After installing and activating the plugin I have the following message, any ideas on how to get rid of this?

Fatal error: Call to undefined function user_can() in /homepages/**/*****/htdocs/**/wp-content/plugins/bbpress/includes/topics/capabilities.php on line 226

I do not know the wordpress version as I cannot access the information, the bb plugin was downloaded today. I believe the theme installed was Atahulpa