Error in class-form.php line 514

Hello good day, i cant post a question as user with role “AnsPress Participants”, i appears the following error:

“Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\gamersoftv2\wp-content\plugins\anspress-question-answer\includes\class-form.php on line 514″,

but as Admin if i can publish question.

PS: Am sorry for my english but i speak spanish, thanks.