Undefined variable: content2

I’d tried Shariff for WordPress (Version 1.0.11) with WordPress 4.1 and Twenty Fifteen, Version 1.0.

Immediately above the Shariff bar on a post, a “Notice: Undefined variable: content2 in […]/wp-content/plugins/shariff-sharing/shariff-wp.php on line 101” is shown (I’ve shoretened the path for better readbility).

It is possible to prevent PHP from showing notices, but it would be better if the variable “content2” would be defined properly.

https://www.ads-software.com/plugins/shariff-sharing/