I am getting the following error messages via email non-stop until now.

native ssl on xxxxx failed

Native SSL support failed to pass the startup test. stunnel was started instead.
The exact error was: [linktest=BinCheck ok
] [binary=/usr/local/cpanel/cpsrvd-ssl] [cpsrvd=Compress::Raw::Zlib object version 2.012 does not match $Compress::Raw::Zlib::XS_VERSION 2.015.
]

You should attempt run /usr/local/cpanel/bin/nativessl-install or submit a support request at https://tickets.cpanel.net/submit/

I was tried to update cPanel, restart cPanel and even reboot the server but that does not help at all.

Can anyone please help me?

Did you do /usr/local/cpanel/bin/nativessl-install as it says?

Login via SSH and try to run one of these binaries:
/scripts/sysup
/scripts/fixeverything
/scripts/upcp

Did you do /usr/local/cpanel/bin/nativessl-install as it says?

I tried it too but it does not show anything and make any effect.

root@happy [~]# /usr/local/cpanel/bin/nativessl-install
root@happy [~]#

Login via SSH and try to run one of these binaries:
/scripts/sysup
/scripts/fixeverything
/scripts/upcp

I ran three of them but my problem is still the same:(

root@happy [~]# /scripts/sysup
Fetching http://httpupdate.cpanel.net/pub/sysup/9-64/.updates (0)....@208.82.118 .100......connected......receiving...100%......Done
portsentry is up to date (Wed Mar 10 13:21:21 2004)
Loading "fastestmirror" plugin
Loading mirror speeds from cached hostfile
* base: centosq3.centos.org
* updates: centoso3.centos.org
* addons: centoso3.centos.org
* extras: centosv2.centos.org
Excluding Packages in global exclude list
Finished
Setting up Install Process
Parsing package install arguments
Package bind - 30:9.3.4-10.P1.el5.x86_64 is already installed.
Package bind-devel - 30:9.3.4-10.P1.el5.i386 is already installed.
Package bind-devel - 30:9.3.4-10.P1.el5.x86_64 is already installed.
Package bind-libs - 30:9.3.4-10.P1.el5.i386 is already installed.
Package bind-libs - 30:9.3.4-10.P1.el5.x86_64 is already installed.
Package bind-utils - 30:9.3.4-10.P1.el5.x86_64 is already installed.
Package bzip2 - 1.0.3-4.el5_2.x86_64 is already installed.
Package crontabs - 1.10-8.noarch is already installed.
Package expect - 5.43.0-5.1.i386 is already installed.
Package expect - 5.43.0-5.1.x86_64 is already installed.
Package freetype - 2.2.1-20.el5_2.x86_64 is already installed.
Package freetype - 2.2.1-20.el5_2.i386 is already installed.
Package freetype-devel - 2.2.1-20.el5_2.i386 is already installed.
Package freetype-devel - 2.2.1-20.el5_2.x86_64 is already installed.
Package gcc - 4.1.2-44.el5.x86_64 is already installed.
Package gcc-c++ - 4.1.2-44.el5.x86_64 is already installed.
Package gd - 2.0.33-9.4.el5_1.1.i386 is already installed.
Package gd - 2.0.33-9.4.el5_1.1.x86_64 is already installed.
Package gd-devel - 2.0.33-9.4.el5_1.1.x86_64 is already installed.
Package gd-devel - 2.0.33-9.4.el5_1.1.i386 is already installed.
Package gd-progs - 2.0.33-9.4.el5_1.1.x86_64 is already installed.
No package gd-utils available.
Package glibc-devel - 2.5-34.i386 is already installed.
Package glibc-devel - 2.5-34.x86_64 is already installed.
Package gnupg - 1.4.5-14.x86_64 is already installed.
Package libgcc - 4.1.2-44.el5.i386 is already installed.
Package libgcc - 4.1.2-44.el5.x86_64 is already installed.
No package libgd1 available.
No package libgd1-devel available.
No package libmysqlclient10-dev available.
No package libxml available.
No package libxml-devel available.
Package libstdc++ - 4.1.2-44.el5.x86_64 is already installed.
Package libstdc++ - 4.1.2-44.el5.i386 is already installed.
Package libstdc++-devel - 4.1.2-44.el5.x86_64 is already installed.
Package libstdc++-devel - 4.1.2-44.el5.i386 is already installed.
Package which - 2.16-7.x86_64 is already installed.
Package lsof - 4.78-3.x86_64 is already installed.
Package sysstat - 7.0.2-3.el5.x86_64 is already installed.
Package libxml2 - 2.6.26-2.1.2.7.i386 is already installed.
Package libxml2 - 2.6.26-2.1.2.7.x86_64 is already installed.
Package libxml2-devel - 2.6.26-2.1.2.7.x86_64 is already installed.
Package libxml2-devel - 2.6.26-2.1.2.7.i386 is already installed.
Package gamin - 0.1.7-8.el5.x86_64 is already installed.
Package gamin - 0.1.7-8.el5.i386 is already installed.
Package gamin-devel - 0.1.7-8.el5.x86_64 is already installed.
Package gamin-devel - 0.1.7-8.el5.i386 is already installed.
Package lynx - 2.8.5-28.1.el5_2.1.x86_64 is already installed.
Package openssh - 4.3p2-29.el5.x86_64 is already installed.
Package openssh-clients - 4.3p2-29.el5.x86_64 is already installed.
Package openssh-server - 4.3p2-29.el5.x86_64 is already installed.
Package openssl - 0.9.8e-7.el5.x86_64 is already installed.
Package openssl - 0.9.8e-7.el5.i686 is already installed.
Package openssl-devel - 0.9.8e-7.el5.x86_64 is already installed.
Package openssl-devel - 0.9.8e-7.el5.i386 is already installed.
No package openssl-misc available.
No package perl-CPAN available.
Package sharutils - 4.6.1-2.x86_64 is already installed.
No package tcp_wrappers-devel available.
No package ucd-snmp available.
No package ucd-snmp-devel available.
No package ucd-snmp-utils available.
Package wget - 1.10.2-7.el5.x86_64 is already installed.
Package urw-fonts - 2.3-6.1.1.noarch is already installed.
No package XFree86-devel available.
No package XFree86-libs available.
Package libX11-devel - 1.0.3-9.el5.i386 is already installed.
Package libX11-devel - 1.0.3-9.el5.x86_64 is already installed.
Package libXpm-devel - 3.5.5-3.i386 is already installed.
Package libXpm-devel - 3.5.5-3.x86_64 is already installed.
Package vixie-cron - 4:4.1-76.el5.x86_64 is already installed.
Package libstdc++-devel - 4.1.2-44.el5.x86_64 is already installed.
Package glibc-devel - 2.5-34.x86_64 is already installed.
Nothing to do

root@happy [~]# /scripts/fixeverything
Installing Default Quota Databases...../aquota.user..../quota.user..../home/aquo ta.user..../home/quota.user..../boot/aquota.user..../boot/quota.user..../var/aqu ota.user..../var/quota.user..../var/tmp/aquota.user..../var/tmp/quota.user..../u sr/aquota.user..../usr/quota.user..../tmp/aquota.user..../tmp/quota.user..../bac kup/aquota.user..../backup/quota.user.....Done
Quotas are now on
Updating Quota Files......