undefined index

Hi
I know this is only a php notice, but my error logs get bigger and bigger 🙁

Notice</b>: Undefined index: plugin_settings in <b>/xyz/wp-content/plugins/floating-social-share-bar/floatingshare.php</b> on line <b>34

thanks!

Monika

https://ww.wp.xz.cn/plugins/floating-social-share-bar/