Asynchronous Loading PHP Notice

Hello,

There is an error notice from your plugin when the Asynchronous Loading setting checkbox is UNchecked:

Notice: Undefined index: addthis_asynchronous_loading in …/wp-content/plugins/addthis/includes/addthis_addjs.php on line 168

You should look into fixing this, if you’re going to provide it as an option. Having PHP errors on is something that is very handy for finding these issues…

Thanks

https://wordpress.org/plugins/addthis/