Tomcat - Error de syntaxis, servidor muerto

Cuando hago

tomcat4 stop
/etc/init.d/httpd stop

/etc/init.d/httpd start

tomcat4 start

me salta el siguiente error:

Using CATALINA_BASE: /var/tomcat4
Using CATALINA_HOME: /var/tomcat4
Using CATALINA_TMPDIR: /var/tomcat4/temp
Using JAVA_HOME: /usr/java/j2sdk1.4.2/
Stopping httpd: [FAILED]
Starting httpd: Syntax error on line 9 of /home/httpd/vhosts/sarquiscorp.com/conf/vhost.conf:
Invalid command 'JkMount', perhaps mis-spelled or defined by a module not included in the server configuration
[FAILED]
Using CATALINA_BASE: /var/tomcat4
Using CATALINA_HOME: /var/tomcat4
Using CATALINA_TMPDIR: /var/tomcat4/temp
Using JAVA_HOME: /usr/java/j2sdk1.4.2/

ES URGENTE SI ALGUIEN ME PUEDE AYUDAR SE LO AGRADESCO