Sendmail::Milter Perl Module

Milter crashes during its work with mistake like "Attempt to free unreferenced scalar: SV 0x914414, Perl interpreter: 0x478078 at milter.pl line 103"

I've written some reports about this problem and all people, which come into collision with this problem, wrote that the problem in setpriv and getpriv methods of $ctx object.

How can I send some private data from one callback to another rightly? I can post here my source if it's necessary.