njvdesign on "[Plugin: wp-creator-calculator] Parse error: syntax error, unexpected ';'"

I installed the plugin WP-creator-calculator, I've been working on additional implement a quote form but when I give me calculate this result:
Parse error: syntax error, unexpected ';' in /home/www/nelsonjaramillo.freehostia.com/wp-content/plugins/wp-creator-calculator/action/wpcc_result.php(16) : eval()'d code on line.

Can you hlep me, please.
Thank you in advance!

http://wordpress.org/extend/plugins/wp-creator-calculator/