Problem With User Activity Plugin

I'm getting the following error after upgrading to the latest version of this plugin:

Notice: supports_collation is deprecated since version 3.5! Use wpdb::has_cap( 'collation' ) instead. in /var/www/sites/edu.uconn.wordpress.development/public_html/wp-includes/functions.php on line 2839 Notice: Undefined offset: 1 in /var/www/sites/edu.uconn.wordpress.development/public_html/wp-admin/includes/upgrade.php on line 1558 Notice: Undefined offset: 1 in /var/www/sites/edu.uconn.wordpress.development/public_html/wp-admin/includes/upgrade.php on line 1558 Notice: Undefined offset: 1 in /var/www/sites/edu.uconn.wordpress.development/public_html/wp-admin/includes/upgrade.php on line 1558