Error when new user registers on Q&A

Attempting to post a question as a new user results in the following error:

Warning: Invalid argument supplied for foreach() in /home/XXXXXX/public_html/accroya.com/wp-content/plugins/qa/core/edit.php on line 359

Warning: Cannot modify header information - headers already sent by (output started at /home/XXXXXX/public_html/accroya.com/wp-content/plugins/qa/core/edit.php:359) in /home/XXXXXX/public_html/accroya.com/wp-content/plugins/qa/core/edit.php on line 269

Warning: Cannot modify header information - headers already sent by (output started at /home/XXXXXX/public_html/accroya.com/wp-content/plugins/qa/core/edit.php:359) in /home/XXXXXX/public_html/accroya.com/wp-includes/pluggable.php on line 896

I've experienced this with multiple browsers, not logged in.