Anspress completely breaks a few things on my site related to anonymous posters

I get this error instead of my comments feeds and numerous plugins like revolution slider are not broken, disabling Anspress fixs it but I love Anspress and have a mini community. Here is error

Fatal error: Uncaught Error: Call to undefined method WP_Comment::exists() in /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-includes/capabilities.php:529 Stack trace: #0 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-content/themes/kleo-child/functions.php(21): user_can(Object(WP_Comment), ‘ap_moderator’) #1 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-includes/plugin.php(235): io_ap_user_display_name(‘Anonymous’, Array) #2 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-content/plugins/anspress-master/includes/user.php(173): apply_filters(‘ap_user_display…’, ‘Anonymous’, Array) #3 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-content/plugins/anspress-master/includes/class-user.php(531): ap_user_display_name(Array) #4 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-includes/plugin.php(235): AnsPress_User::get_avatar(Array, Object(WP_Comment)) #5 /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-includes/link-template.php(3917): app in /srv/users/serverpilot/apps/silvercensuswordpress/public/wp-includes/capabilities.php on line 529