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Missing argument 2 for info(), called in /home/ofwsocia/public_html/mod/chat/vendors/freichat/installation/install.php on line 307 and defined in /home/ofwsocia/public_html/mod/chat/vendors/freichat/installation/drivers/Elgg.php on line 3

I am using Elgg 1.8.3. It has no problem when installed in localhost.
I GOT THIS ERROR. COULD PLEASE SOMEONE TELL HOW TO CORRECT THIS?
You may email your reply also to nhunaro@yahoo.com.
THANK YOU IN ADVANCE!

open freichat/installation/drivers/Elgg.php
search for

function info($path_host, $url) {

function info($path_host) {