Strict Standards: Redefining already defined constructor for class sh_Net_URL in /home/sdaweb/public_html/2/administrator/components/com_sef/sh404sef.class.php on line 2101

SH404SEF : headers were already sent when I got control!
Killed at line 129 in sef404.php: HEADERS ALREADY SENT (200)
URL=http://2.sda-web.orgoption=com_frontpage&Itemid=1
OPTION=com_frontpage