the error points to line 8 as being the problem:
output started at /services/webpages/b/e/bendannie.com/public/benadmin/drequests_results.php:8
I dont see an issue at line 8, though I do see a problem at line 13, there is a blank space at the end of line 13 after the closing PHP tag that will cause this error:
"<?php require_once("../webassist/database_management/wada_search.php"); ?> "
see this thread for more details on this error and troubleshooting techniques: