User Activity coding needs to be updated.

Deprecated: Assigning the return value of new by reference is deprecated in /home/poetrysc/public_html/my/wp-content/plugins/user-activity/user-activity.php on line 448

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/poetrysc/public_html/my/wp-content/plugins/user-activity/user-activity.php:448) in /home/poetrysc/public_html/my/wp-content/plugins/wp-ultimate-csv-importer/index.php on line 77