Error message

• Warning: Cannot modify header information - headers already sent by (output started at /home/canrep/public_html/includes/common.inc:2807) in drupal_send_headers() (line 1501 of /home/canrep/public_html/includes/bootstrap.inc).
• ParseError: syntax error, unexpected '=' in php_eval() (line 9 of /home/canrep/public_html/modules/php/php.module(80) : eval()'d code).