Apache2 ERROR

I am restarting apache it is giving me this error root@tznic:/etc/apache2/mods-available# /etc/init.d/apache2 start * Starting web server apache2 apache2: Syntax error on line 298 of /etc/apache2/apache2.conf: Syntax error on line 19 of /etc/apache2/sites-enabled/000-default: Cannot load /etc/apache2/mods/mod_whoisd.so into server: /etc/apache2/mods/mod_whoisd.so: cannot open shared object file: No such file or directory [fail] root@tznic:/etc/apache2/mods-available# /etc/init.d/apache2 start