[Plugin: Google Analytics for WordPress] Fatal error, site broken

After updating to version 4.2.6, the plugin broke my site and this is all that is displayed:

Notice: Undefined variable: options in C:\xampp\htdocs\content\plugins\google-analytics-for-wordpress\googleanalytics.php on line 1575

Notice: Undefined variable: ga_admin in C:\xampp\htdocs\content\plugins\google-analytics-for-wordpress\googleanalytics.php on line 1578

Fatal error: Call to a member function set_defaults() on a non-object in C:\xampp\htdocs\content\plugins\google-analytics-for-wordpress\googleanalytics.php on line 1578

http://wordpress.org/extend/plugins/google-analytics-for-wordpress/