I am in a bit of a panic. Through my WordPress admin panel, I was alerted as to the availability of the All in One SEO 2.0 (free version). It said 100% compatibility with my WordPress level, 3.0.1. When I upgraded from 22.214.171.124, the message said the process was completed successfully. However, my WordPress admin function is now inoperable. I receive the following error no matter what I try to do.
"Fatal error: Call to undefined function get_current_screen() in /home/domeboys/public_html/wp-content/plugins/all-in-one-seo-pack/aioseop_module_class.php on line 612"
Does anyone please have any ideas how I can extricate myself from this mess?