New Update Causing Problems | WordPress.org

When the new update was automatically installed I started getting messages every time I add a new AD or change an AD

admin.php?page=adrotate&status=200
Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/proofpositive.com/public_html/wp-content/plugins/adrotate/adrotate-functions.php:774) in /home/customer/www/proofpositive.com/public_html/wp-includes/pluggable.php on line 1416

Can you please let me know how this can be fixed?

If I deactivate the plug in and reinstall I am assuming I will lose all my existing ads?

The page I need help with: [log in to see the link]

 

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