Anspress 4 b3 LATEST Commit

[18-Jan-2017 17:20:46 UTC] PHP Fatal error:  Uncaught Error: Class ‘PC’ not found in /home/wp-content/plugins/anspress/includes/ask-form.php:237
Stack trace:
#0 /home/wp-content/plugins/anspress/includes/process-form.php(197): ap_save_question(Array, true)
#1 /home/wp-content/plugins/anspress/includes/process-form.php(93): AnsPress_Process_Form->process_ask_form()
#2 /home/wp-content/plugins/anspress/includes/process-form.php(66): AnsPress_Process_Form->process_form()
#3 /home/wp-includes/class-wp-hook.php(298): AnsPress_Process_Form->ap_ajax(”)
#4 /home/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(”, Array)
#5 /home/wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#6 /home/wp-admin/admin-ajax.php(91): do_action(‘wp_ajax_ap_ajax’)
#7 {main}
thrown in /home/wp-content/plugins/anspress/includes/ask-form.php on line 237