Deprecated: Non-static method Wdcp_PublicPages::serve()

Hi,

With debug set to true I'm seeing:
Deprecated: Non-static method Wdcp_PublicPages::serve() should not be called statically in /var/www/public_html/wp-content/plugins/comments-plus/comments-plus.php on line 101

Should that be fixed or can it be ignored? Using latest Wordpress and plugin version.

Kind regards,
Age