[Ipstenu (Mika Epstein)]

The URL on the settings page to BB press is supposed to point to your forum, NOT your blog. If you want a link to your blog, you should edit your theme templates.

As to how to fix. Do you have access to the SQL end of things? Like phpMyAdmin? Go into your BBpress Database and in the bb_meta table, find the meta key uri. Change that back to your blog URL (http://www.ins-ide.org/forum)