Replacing 2 Big IP units

I hope that I understood what you mean exactly and got the right information. thank you in advance for your help.

[root@hawary:Active:Standalone] config 
[root@hawary:Active:Standalone] config  tmsh load sys ucs F5-Beta-03-05-15.ucs no-license
Processing UCS file: /var/local/ucs/F5-Beta-03-05-15.ucs

Installing full UCS (10.0.0) data, excluding license file.
Saving active configuration...
tar: conf/ssl.crt/server.crt: time stamp 2015-05-07 02:22:32 is 327 s in the future
tar: conf/ssl.crt: time stamp 2015-05-07 02:22:32 is 327 s in the future
tar: conf/ssl.key/server.key: time stamp 2015-05-07 02:22:32 is 327 s in the future
tar: conf/ssl.key: time stamp 2015-05-07 02:22:32 is 327 s in the future
The hostname is set to LB-Pri.sharjah.ac.ae
Extracting manifest: /var/local/ucs/F5-Beta-03-05-15.ucs
Product : BIG-IP
Platform: Z99
Version : UCS   : 10.0.0
         System: 11.3.0
Edition : UCS   : Hotfix HF2
         System: VE Trial 11.3.0-HF1 (based on BIGIP 11.3.0HF6)
Hostname: LB-Pri.sharjah.ac.ae
Installing --full-- configuration on host LB-Pri.sharjah.ac.ae
Installing configuration...
File latheefbundle.p12 of type "certificate" not rolled forward to file-object: the file is empty or contains   invalid data.
ATTENTION REQUIRED:
   Your previous configuration files have been archived, as listed
   below. If you customized any settings in these files before
   upgrading, you will need to manually restore those changes by
   using the Configuration utility or Traffic Management Shell (tmsh).
   Archiving /config/wa/pvsystem.conf.10.0.0
 Archiving /config/wa/pvsystem.dtd.10.0.0
 Archiving /config/wa/globalfragment.xml.10.0.0
  Archiving /config/wa/transforms/common.zip.10.0.0
Post-processing...
Reloading License and configuration - this may take a few minutes...
Configuration loading error: base-config-load-failed
For additional details, please see messages in /var/log/ltm

WARNING: There were one or more errors detected during installation.
      Check the error messages and take the proper actions if needed.
ERROR: UCS installation failed.
Operation aborted.
[root@LB-Pri:Active:Standalone] config  tmsh load sys config
Loading system configuration...
  /defaults/asm_base.conf
  /defaults/config_base.conf
  /defaults/low_profile_base.conf
  /defaults/wam_base.conf
  /defaults/analytics_base.conf
  /defaults/apm_saml_base.conf
  /defaults/app_template_base.conf
  /defaults/classification_base.conf
  /defaults/daemon.conf
 /defaults/fullarmor_gpo_base.conf
  /defaults/profile_base.conf
  /defaults/security_base.conf
  /usr/share/monitors/base_monitors.conf
Loading configuration...
  /config/bigip_base.conf
01070920:3: Application error for confpp: httpd: apr_sockaddr_info_get() failed for LB-Pri.sharjah.ac.ae
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
Syntax OK
The certificate does not match the key.  To change them try 'tmsh modify sys httpd { ssl-certfile           /etc/httpd/conf/ssl.crt/server.crt ssl-certkeyfile /etc/httpd/conf/ssl.key/server.key }'
*************************************************************
May  7 13:19:57 LB-Pri.sharjah.ac.ae confpp[12913]: syntax check command FAILURE for unix_config_httpd  returned: '2304'
Shutting down ntpd: [  OK  ]
Starting ntpd: [  OK  ]

Unexpected Error: Loading configuration process failed.
[root@LB-Pri:Active:Standalone] config