Saving OnSwipe settings

I’ve installed OnSwipe, but when I try to save my settings it gives me this:
How can I fix??

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: preg_match() expects parameter 2 to be string, array given in /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php on line 226

Warning: Cannot modify header information – headers already sent by (output started at /home2/foxinfla/public_html/wp-content/plugins/wordpress-firewall-2/wordpress-firewall-2.php:226) in /home2/foxinfla/public_html/wp-includes/pluggable.php on line 934