Error when try to activate

i get this error when try to acctivate recent-global-posts-feed?

Plugin could not be activated because it triggered a fatal error.

Warning: require_once(../wp-load.php) [function.require-once]: failed to open stream: No such file or directory in /home/websho/public_html/wp-content/plugins/recent-global-posts-feed/recent-global-posts-feed.php on line 28

i have these plugins installed allredy.