Great plugin, strange error

When I activate https://ww.wp.xz.cn/plugins/custom-content-shortcode/ together with your plugin, the following warning is reported, repeatedly:

Warning: Missing argument 2 for anspress_theme::the_title() in /home/holger/webapps/intheiambible1/wp-content/plugins/anspress-question-answer/includes/anspress-theme.php on line 120

Thank you 😉

https://ww.wp.xz.cn/plugins/anspress-question-answer/