Errors - errors - BuddyPress

http://eastatlantaalumni.org/groups//
Warning: Invalid argument supplied for foreach() in /home/content/e/a/a/eaalumni/html/wp-content/plugins/buddypressbbpress-email-notification/bn-bb-notification.php on line 42

Warning: Cannot modify header information - headers already sent by (output started at /home/content/e/a/a/eaalumni/html/wp-content/plugins/buddypress/bp-groups/bp-groups-templatetags.php:337) in /home/content/e/a/a/eaalumni/html/wp-includes/pluggable.php on line 890

This particular error appears after attempting to create a new forum topic. If I try to refresh the page the error appears but if I hit the backspace key I can get back to the dashboard. All I can do at this point is delete the plugin. In addition to this I'm getting duplication topics created. I'm so frustrated right now I can't see straight. Is there any way to delete the extra topic?

Anyone have any suggestions? I get an error similar to this after adding Google maps with the "MapPress" plugin.