Widget Social Login … php notice: Undefined variable: default

Hi,

after updating to v7.7 i get the following Warnings:

wp-content/plugins/super-socializer/inc/widget.php:39 – Undefined variable: default

NOTICE: wp-content/plugins/super-socializer/inc/widget.php:39 – Undefined variable: alt

it did not happen with v7.6.

I dowloaded the widget.php from github and replaced the v7.7 widget.php
as described in this thread

https://wordpress.org/support/topic/permalinks-not-updating-when-moved-to-root

and the warnings are gone. Any ideas?

https://wordpress.org/plugins/super-socializer/