Permantently Delete Fatal Error in V4b2 latest

[16-Jan-2017 15:22:09 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function ap_delete_subscriptions() in /home/wp-content/plugins/anspress/addons/free/email.php:856
Stack trace:
#0 /home/wp-includes/class-wp-hook.php(298): AnsPress_Email_Hooks::delete_subscriptions(245)
#1 /home/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#2 /home/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#3 /home/wp-includes/post.php(2460): do_action(‘before_delete_p…’, 245)
#4 /home/wp-content/plugins/anspress/includes/hooks.php(171): wp_delete_post(245, true)
#5 /home/wp-includes/class-wp-hook.php(298): AnsPress_Hooks::before_delete(244)
#6 /home/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#7 /home/wp-includes/plugin.php(453): WP_Hook->do_action( in /home/wp-content/plugins/anspress/addons/free/email.php on line 856
[16-Jan-2017 15:22:46 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function ap_delete_subscriptions() in /home/wp-content/plugins/anspress/addons/free/email.php:856