Error message on confirmation page of membership signup

getting an error on the confirmation page before processing at paypal. Error message is as follows:

Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/class.wp-scripts.php:70) in /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/pluggable.php on line 680 Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/class.wp-scripts.php:70) in /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/pluggable.php on line 681 Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/class.wp-scripts.php:70) in /var/www/vhosts/idahobusinessalliance.com/httpdocs/wp-includes/pluggable.php on line 682
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