Error: rlm_sql: Stop packet with zero session length.

[hernan_gonzalez_pablo]

Hi...   I'm running freeradius-0.8 version over debian and I use postgres sql to accounting and authentication.-   In some cases the radius present this error's message in its log's file.-   Mon Nov 25 21:52:10 2002 : Error: rlm_sql: Stop packet with zero session length.  (user '64.94.191.139', nas '200.59.8.226')   what can I do to fix this problems???...   Regards.-