Strict Standards: Redefining already defined constructor for class sh_Net_URL in /home/webkata/public_html/administrator/components/com_sef/sh404sef.class.php on line 2122

SH404SEF : headers were already sent when I got control!
Killed at line 123 in sef404.php: HEADERS ALREADY SENT (200)
URL=http://www.webkata.netoption=com_frontpage&Itemid=1
OPTION=com_frontpage