Warning in Error Log

I am getting the following warning in my WP Error log with the latest version of ToolTip Glossary.

[03-Jul-2014 02:43:55 UTC] PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘CMTooltipGlossaryFrontend’ does not have a method ‘cmtt_reenable_parsing’ in /home/xxxxl/public_html/wp-includes/plugin.php on line 192

https://ww.wp.xz.cn/plugins/enhanced-tooltipglossary/