Sorry that I am posting here but when I try open www.excelforum.com I receive this information below (I can open this website only by my privat email box (email with answer))
So when I try active tab "Forum" this error appears hence I am not able to create new post.

Fatal error: Call to undefined function pIfIP() in /home/eforum/public_html/vbseo.php on line 2
do You have something like this or it is problem of my internet browser?