Thanks for your reply.
Even after changing the -encoding to -encode, I am getting the same error.
Further, line 258 is,

 if($s->{Pref} > $self->{' mstable'}->{Pref})
        {
            $self->{' mstable'} = $s;
            $found = 1;
        }
[download]

My main problem is, though the font is visible in Windows machine, its not on MAC.

Please let me know if there is any specific thing that I have to take care for it to be visible on MAC.
Thanks,Manu