set cookies to 2: how do you do this? Also

Warning: setcookie() expects parameter 2 to be string, array given in /home/mornin70/public_html/wp-content/plugins/coursepress/coursepress.php on line 1154

This is with the debug set to false in the config page. How do I get that off of the confirmation page for the person who purchases the class?

Also, I created SKU numbers that you can see in the product page but they do not save in the course itself. When I purchase the course a long number appears instead of the SKU I created. This is one example of a SKU that I created: MSUO-Church-His

When I put it into the course upon submit it disappears and when you purchase the course another number appears. Please help with these two things.