Before upgrading all worked to perfection, please help me.

[zimbra@mail ~]$ zmcontrol status
Host mail.sitac.cl
antispam Stopped
zmamavisdctl is not running
antivirus Stopped
zmamavisdctl is not running
ldap Running
logger Running
mailbox Running
memcached Running
mta Running
snmp Running
spell Running
stats Running


[zimbra@mail ~]$ zmamavisdctl start
Starting amavisd...failed.

This is log.


Aug 4 09:31:29 mail zimbramon[6724]: 6724:info: Starting mta via zmcontrol
Aug 4 09:31:30 mail zimbramon[6724]: 6724:info: Starting stats via zmcontrol
Aug 4 09:31:44 mail zmmailboxdmgr[14365]: status requested
Aug 4 09:31:44 mail zmmailboxdmgr[14365]: status OK
Aug 4 09:32:06 mail zmmailboxdmgr[14797]: status requested
Aug 4 09:32:06 mail zmmailboxdmgr[14797]: status OK
Aug 4 09:32:51 mail zmmailboxdmgr[16510]: status requested
Aug 4 09:32:51 mail zmmailboxdmgr[16510]: status OK
Aug 4 09:32:52 mail zmmailboxdmgr[16629]: status requested
Aug 4 09:32:52 mail zmmailboxdmgr[16629]: status OK
Aug 4 09:32:55 mail amavis[16698]: Valid PID file (younger than sys uptime 0 0:07:00)
Aug 4 09:32:55 mail amavis[16698]: starting. /opt/zimbra/amavisd/sbin/amavisd at mail.sitac.cl amavisd-new-2.6.4 (20090625), Unicode aware, LC_ALL="C", LANG="C"
Aug 4 09:32:55 mail amavis[16698]: user=500, EUID: 500 (500); group=, EGID: 500 501 500 5 4 (500 501 500 5 4)
Aug 4 09:32:55 mail amavis[16698]: Perl version 5.008008
Aug 4 09:32:56 mail amavis[16698]: SpamControl: init_pre_chroot on SpamAssassin done
Aug 4 09:32:56 mail amavis[16704]: Net::Server: Process Backgrounded
Aug 4 09:32:56 mail amavis[16704]: Net::Server: 2012/08/04-09:32:56 Amavis (type Net::Server::PreForkSimple) starting! pid(16704)
Aug 4 09:32:56 mail amavis[16704]: Net::Server: Using default listen value of 128
Aug 4 09:32:56 mail amavis[16704]: Net::Server: Binding to UNIX socket file /opt/zimbra/data/amavisd/amavisd.sock using SOCK_STREAM
Aug 4 09:32:56 mail amavis[16704]: Net::Server: Binding to TCP port 10024 on host 127.0.0.1
Aug 4 09:32:56 mail amavis[16704]: Net::Server: Group Not Defined. Defaulting to EGID '500 501 500 5 4'
Aug 4 09:32:56 mail amavis[16704]: Net::Server: User Not Defined. Defaulting to EUID '500'
Aug 4 09:32:56 mail amavis[16704]: (!!)TROUBLE in pre_loop_hook: Invalid IPv4 network mask or CIDR prefix length: [10.8.1.10/32,]
Aug 4 09:32:56 mail amavis[16704]: (!)_DIE: Suicide () TROUBLE in pre_loop_hook: Invalid IPv4 network mask or CIDR prefix length: [10.8.1.10/32,]
Aug 4 09:33:24 mail postfix/scache[10850]: statistics: start interval Aug 4 09:30:04
Aug 4 09:33:24 mail postfix/scache[10850]: statistics: domain lookup hits=0 miss=2 success=0%
Aug 4 09:33:24 mail postfix/scache[10850]: statistics: address lookup hits=0 miss=2 success=0%