Cannot reply because of fatal error on stackideas forum

Hello,
I cannot reply to my topic; http://stackideas.com/forums/update-to-1-2-8-disabled-lot-of-things

I get the following error:Notice: Undefined variable: db in /home/admin/stackideas.com/templates/delta/html/com_easydiscuss/post.question.item.php on line 188 Fatal error: Call to a member function Quote() on a non-object in /home/admin/stackideas.com/templates/delta/html/com_easydiscuss/post.question.item.php on line 188