PerlModule complaint error

Hello,

I have problem with PerlModule reload in Apache for HTML::Mason, I
don't know why the Apache doesn't understand 'PerlModule', It
complaint misspelled or not include for the PerlModule,

PerlModule HTML::Mason::ApacheHandler

SetHandler perl-script
PerlHandler HTML::Mason::ApacheHandler


I already install HTML::Mason, but I Don't know whether it is the
problem with HTML::Mason installation or I miss something with Apache.

Thank you.