hello everybody

first of all you have to know i am a newbie in mail system so if i am long to understand it's normal
Yesterday i have installed my mail server and all worked fine. This morning when i tried to restart my server nothing worked.

i have taken a look in /var/log/zimbra.log and this log tells that i have a problem with tomcat

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Jul 25 07:25:17 mail sshd[2651]: Server listening on :: port 22.
Jul 25 07:25:21 mail su[2754]: (pam_unix) session opened for user zimbra by (uid=0)
Jul 25 07:25:24 mail zimbramon[2759]: 2759:info: Starting services
Jul 25 07:25:27 mail slapd[2800]: @(#) $OpenLDAP: slapd 2.3.34 (Mar 28 2007 13:45:10) $ ^Iroot@build-debian.liquidsys.com:/home/build/p4/main/ThirdParty/openldap/openldap-2.3.34/servers/slapd
Jul 25 07:25:27 mail slapd[2801]: slapd starting
Jul 25 07:25:35 mail zimbramon[2759]: 2759:info: Rewriting configs antispam antivirus webxml mailbox antispam antivirus mta sasl
Jul 25 07:25:42 mail zimbramon[2759]: 2759:info: Starting logger
Jul 25 07:25:42 mail zimbramon[2759]: 2759:info: Starting mailbox
Jul 25 07:25:53 mail zmtomcatmgr[3150]: status requested
Jul 25 07:25:53 mail zmtomcatmgr[3150]: stale pid 7058 found in /opt/zimbra/log/zmtomcatmgr.pid: No such process
Jul 25 07:25:53 mail zmtomcatmgr[3150]: assuming no other instance is running
Jul 25 07:25:53 mail zmtomcatmgr[3150]: no manager process is running
Jul 25 07:25:53 mail zmtomcatmgr[3157]: start requested
Jul 25 07:25:53 mail zmtomcatmgr[3157]: checking if another instance of manager is already running
Jul 25 07:25:53 mail zmtomcatmgr[3157]: stale pid 7058 found in /opt/zimbra/log/zmtomcatmgr.pid: No such process
Jul 25 07:25:53 mail zmtomcatmgr[3157]: assuming no other instance is running
Jul 25 07:25:53 mail zmtomcatmgr[3158]: wrote manager pid 3158 to /opt/zimbra/log/zmtomcatmgr.pid
Jul 25 07:25:53 mail zmtomcatmgr[3158]: manager started tomcat/JVM with pid 3159
Jul 25 07:25:53 mail zimbramon[2759]: 2759:info: Starting antispam
Jul 25 07:25:54 mail zimbramon[2759]: 2759:info: Starting antivirus
Jul 25 07:25:54 mail zimbramon[2759]: 2759:info: Starting snmp
Jul 25 07:25:54 mail zimbramon[2759]: 2759:info: Starting spell
Jul 25 07:25:55 mail clamd[3203]: clamd daemon 0.90.2 (OS: linux-gnu, ARCH: i386, CPU: i686)
Jul 25 07:25:55 mail clamd[3203]: Log file size limited to 20971520 bytes.
Jul 25 07:25:55 mail clamd[3203]: Reading databases from /opt/zimbra/clamav/db
Jul 25 07:25:56 mail zimbramon[2759]: 2759:info: Starting mta
Jul 25 07:25:56 mail postfix/postqueue[3227]: fatal: Queue report unavailable - mail system is down
Jul 25 07:26:03 mail CRON[3249]: (pam_unix) session opened for user zimbra by (uid=0)
Jul 25 07:26:05 mail amavis[3173]: starting. /opt/zimbra/amavisd/sbin/amavisd at mail.acoqp.fr amavisd-new-2.4.3 (20060930), Unicode aware, LANG=C
Jul 25 07:26:05 mail amavis[3173]: user=1001, EUID: 1001 (1001); group=, EGID: 1001 1002 1001 5 4 (1001 1002 1001 5 4); log_level=1
Jul 25 07:26:05 mail amavis[3173]: Perl version 5.008008
Jul 25 07:26:05 mail postfix/postfix-script: warning: not owned by root: /opt/zimbra/postfix-2.2.9/conf/main.cf
Jul 25 07:26:06 mail amavis[3173]: SpamControl: init_pre_chroot done
Jul 25 07:26:06 mail amavis[3291]: Net::Server: Process Backgrounded
Jul 25 07:26:06 mail amavis[3291]: Net::Server: 2007/07/25-07:26:06 Amavis (type Net::Server::PreForkSimple) starting! pid(3291)
Jul 25 07:26:06 mail amavis[3291]: Net::Server: Binding to UNIX socket file /opt/zimbra/amavisd/amavisd.sock using SOCK_STREAM
Jul 25 07:26:06 mail amavis[3291]: Net::Server: Binding to TCP port 10024 on host 127.0.0.1
Jul 25 07:26:06 mail amavis[3291]: Net::Server: Group Not Defined. Defaulting to EGID '1001 1002 1001 5 4'
Jul 25 07:26:06 mail amavis[3291]: Net::Server: User Not Defined. Defaulting to EUID '1001'
Jul 25 07:26:06 mail amavis[3291]: Module Amavis::Conf 2.072
Jul 25 07:26:06 mail amavis[3291]: Module Archive::Tar 1.30
Jul 25 07:26:06 mail amavis[3291]: Module Archive::Zip 1.18
Jul 25 07:26:06 mail amavis[3291]: Module BerkeleyDB 0.31
Jul 25 07:26:06 mail amavis[3291]: Module Compress::Zlib 2.004
Jul 25 07:26:06 mail amavis[3291]: Module Convert::TNEF 0.17
Jul 25 07:26:06 mail amavis[3291]: Module Convert::UUlib 1.08
Jul 25 07:26:06 mail amavis[3291]: Module DBD::mysql 4.003
Jul 25 07:26:06 mail amavis[3291]: Module DBI 1.54
Jul 25 07:26:06 mail amavis[3291]: Module DB_File 1.815
Jul 25 07:26:06 mail amavis[3291]: Module Digest::MD5 2.36
Jul 25 07:26:06 mail amavis[3291]: Module MIME::Entity 5.420
Jul 25 07:26:06 mail amavis[3291]: Module MIME::Parser 5.420
Jul 25 07:26:06 mail amavis[3291]: Module MIME::Tools 5.420
Jul 25 07:26:06 mail amavis[3291]: Module Mail::Header 1.74
Jul 25 07:26:06 mail amavis[3291]: Module Mail::Internet 1.74
Jul 25 07:26:06 mail amavis[3291]: Module Mail::SpamAssassin 3.001008
Jul 25 07:26:06 mail amavis[3291]: Module Net::Cmd 2.27
Jul 25 07:26:06 mail amavis[3291]: Module Net:NS 0.59
Jul 25 07:26:06 mail amavis[3291]: Module Net::LDAP 0.34
Jul 25 07:26:06 mail amavis[3291]: Module Net::SMTP 2.30
Jul 25 07:26:06 mail amavis[3291]: Module Net::Server 0.95
Jul 25 07:26:06 mail amavis[3291]: Module Time::HiRes 1.9707
Jul 25 07:26:06 mail amavis[3291]: Module Unix::Syslog 0.99
Jul 25 07:26:06 mail amavis[3291]: Amavis:B code loaded
Jul 25 07:26:06 mail amavis[3291]: Amavis::Cache code loaded
Jul 25 07:26:06 mail amavis[3291]: SQL base code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: SQL::Log code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: SQL::Quarantine NOT loaded
Jul 25 07:26:06 mail amavis[3291]: Lookup::SQL code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: Lookup::LDAP code loaded
Jul 25 07:26:06 mail amavis[3291]: AM.PDP-in proto code loaded
Jul 25 07:26:06 mail amavis[3291]: SMTP-in proto code loaded
Jul 25 07:26:06 mail amavis[3291]: Courier proto code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: SMTP-out proto code loaded
Jul 25 07:26:06 mail amavis[3291]: Pipe-out proto code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: BSMTP-out proto code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: Local-out proto code loaded
Jul 25 07:26:06 mail amavis[3291]: OS_Fingerprint code NOT loaded
Jul 25 07:26:06 mail amavis[3291]: ANTI-VIRUS code loaded
Jul 25 07:26:06 mail amavis[3291]: ANTI-SPAM code loaded
Jul 25 07:26:06 mail amavis[3291]: ANTI-SPAM-SA code loaded
Jul 25 07:26:06 mail amavis[3291]: Unpackers code loaded
Jul 25 07:26:07 mail amavis[3291]: Found $file at /usr/bin/file
Jul 25 07:26:07 mail amavis[3291]: No $dspam, not using it
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .mail
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .asc
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .uue
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .hqx
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .ync
Jul 25 07:26:07 mail amavis[3291]: No decoder for .F tried: unfreeze, freeze -d, melt, fcat
Jul 25 07:26:07 mail amavis[3291]: Found decoder for .Z at /bin/uncompress
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .gz
Jul 25 07:26:07 mail amavis[3291]: Found decoder for .bz2 at /bin/bzip2 -d
Jul 25 07:26:07 mail amavis[3291]: No decoder for .lzo tried: lzop -d
Jul 25 07:26:07 mail amavis[3291]: No decoder for .rpm tried: rpm2cpio.pl, rpm2cpio
Jul 25 07:26:07 mail amavis[3291]: Found decoder for .cpio at /bin/cpio
Jul 25 07:26:07 mail amavis[3291]: Found decoder for .tar at /bin/cpio
Jul 25 07:26:07 mail amavis[3291]: Found decoder for .deb at /usr/bin/ar
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .zip
Jul 25 07:26:07 mail amavis[3291]: No decoder for .rar tried: rar, unrar
Jul 25 07:26:07 mail amavis[3291]: No decoder for .arj tried: arj, unarj
Jul 25 07:26:07 mail amavis[3291]: No decoder for .arc tried: nomarch, arc
Jul 25 07:26:07 mail amavis[3291]: No decoder for .zoo tried: zoo
Jul 25 07:26:07 mail amavis[3291]: No decoder for .lha tried: lha
Jul 25 07:26:07 mail amavis[3291]: No decoder for .cab tried: cabextract
Jul 25 07:26:07 mail amavis[3291]: No decoder for .tnef tried: tnef
Jul 25 07:26:07 mail amavis[3291]: Internal decoder for .tnef
Jul 25 07:26:07 mail amavis[3291]: No decoder for .exe tried: rar, unrar; lha; arj, unarj
Jul 25 07:26:07 mail amavis[3291]: Using internal av scanner code for (primary) ClamAV-clamd
Jul 25 07:26:07 mail amavis[3291]: Creating db in /opt/zimbra/amavisd/db/; BerkeleyDB 0.31, libdb 4.2
Jul 25 07:26:07 mail postfix/postfix-script: starting the Postfix mail system
Jul 25 07:26:07 mail postfix/master[3306]: fatal: bind 0.0.0.0 port 25: Address already in use
Jul 25 07:26:08 mail saslauthd[3317]: detach_tty : master pid is: 3317
Jul 25 07:26:08 mail saslauthd[3317]: ipc_init : listening on socket: /opt/zimbra/cyrus-sasl-2.1.21.ZIMBRA/state/mux
Jul 25 07:26:08 mail amavis[3291]: SpamControl: initializing Mail::SpamAssassin
Jul 25 07:26:08 mail su[2754]: (pam_unix) session closed for user zimbra
Jul 25 07:26:10 mail amavis[3291]: SpamControl: init_pre_fork done
Jul 25 07:26:10 mail sshd[3312]: Accepted password for root from 192.168.0.5 port 38582 ssh2
Jul 25 07:26:10 mail sshd[3337]: (pam_unix) session opened for user root by root(uid=0)
Jul 25 07:26:15 mail zmtomcatmgr[3158]: manager woke up from wait on tomcat/JVM with pid 3159
Jul 25 07:26:15 mail zmtomcatmgr[3158]: manager started tomcat/JVM with pid 3389
Jul 25 07:26:17 mail su[3439]: (pam_unix) session opened for user zimbra by (uid=0)
Jul 25 07:26:17 mail zmtomcatmgr[3441]: status requested
Jul 25 07:26:17 mail zmtomcatmgr[3441]: status OK
Jul 25 07:26:17 mail postfix/postqueue[3453]: fatal: Queue report unavailable - mail system is down
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: antispam: Running
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: antivirus: Stopped
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: ldap: Running
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: logger: Running
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: mailbox: Running
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: mta: Stopped
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: snmp: Running
Jul 25 07:26:19 mail zimbramon[3250]: 3250:info: 2007-07-25 07:26:03, STATUS: mail.acoqp.fr: spell: Running
Jul 25 07:26:19 mail CRON[3249]: (pam_unix) session closed for user zimbra
Jul 25 07:26:28 mail zmtomcatmgr[3158]: manager woke up from wait on tomcat/JVM with pid 3389
Jul 25 07:26:28 mail zmtomcatmgr[3158]: tomcat/JVM exited twice in 13 seconds (tolerance=60)
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Of course i have tried to restart services but it does not change the problem

If someone can help me plzzz thanks by advance