Problems upgrading to new version

I've downloaded the latest plugin version and when I copied to my server I got this error:

PHP Fatal error: Cannot redeclare M_cache_favourite_actions() (previously declared in /var/www/html/jurisprudencialaboral.dev/wp-content/plugins/membership/membershipincludes/includes/functions.php:1228) in /var/www/html/jurisprudencialaboral.dev/wp-content/plugins/membership/membershipincludes/addons/default.admin.rules.php on line 513, referer: http://jurisprudencialaboral.dev/login/?action=login

What is wrong? Did I miss something?