getting error message

just installed the plugin created twitter app etc currently getting this error message above widget in sidebar

Strict Standards: Non-static method Twitter_Like_Box_Widget::fetch_twitter_followers() should not be called statically in /home4/xxx-xxx/public_html/wp-content/plugins/twitter-like-box-reloaded/Twitter_Like_Box_Widget.class.php on line 134

any sugestions on a fix? thanks

https://ww.wp.xz.cn/plugins/twitter-like-box-reloaded/