i just upgraded from WordPress 1.2 to WordPress 1.5 … đŸ™‚ i’ll fix later the theme. đŸ™‚

i have a problem on the presentation (http://www.wyzemoro.com/wp-admin/themes.php)

Fatal error: Call to a member function on a non-object in /usr/local/psa/home/vhosts/wyzemoro.com/httpdocs/wp-includes/functions.php on line 1377

does anyone here also have this problem? or i’m the only one have this?