Query error:
SELECT * FROM member LEFT JOIN friend ON (member.id = friend.friendid OR member.id = friend.userid) WHERE (friend.userid = OR friend.friendid =) AND (username!='') AND friend.friend_removed=0 AND friend.friend_approved=1 GROUP BY member.id

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'OR friend.friendid =) AND (username!='') AND friend.friend_removed=0 AND friend.' at line 1