Error in CustomPress

I'm seeing this error in Role Capabilities section of CustomPress when editing a custom post type:

Warning: get_object_vars() expects parameter 1 to be object, null given in /home/as75098/public_html/gg/wp-content/plugins/custompress/core/core.php on line 411

Warning: array_keys() expects parameter 1 to be array, null given in /home/as75098/public_html/gg/wp-content/plugins/custompress/core/core.php on line 411

Warning: Invalid argument supplied for foreach() in /home/as75098/public_html/gg/wp-content/plugins/custompress/core/core.php on line 420