Strict Standards: Redefining already defined constructor for class Net_URL in /home/alojamen/public_html/administrator/components/com_sef/sef.class.php on line 643

Error: headers already sent in sef.class.php on line 643.
Stopped at line 906 in joomsef.php: HEADERS ALREADY SENT (200)
URL=http://www.alojamentopt.comoption=com_frontpage&Itemid=1:
OPTION=com_frontpage: