FreePBX 12 on CentOS5.11. Errors in httpd log

Hi FreePBX,

Because of special hardware, we need to use a CentOS 5.11 install.
We have setup a clean system and installed the next stuff.
On CentOS 5.11 i386
Asterisk 11.16
FreePBX 12.0.43
pear db-1.7.14
PHP 5.3.28
All other dependencie’s needed for this to work.

The problem is that the webgui becomes unresponsive for over one minute when changing things. But not alway’s. Mostly when editing extensions.

Looking further with ‘amporta a debug’ we had the next errors when loading the Dashboard.
The Dashboard also does not show any RSS feed info. While a Virtual new Distro on my network does show it. So no network issues.

The errors showing from ‘amportal a debug’
==> /var/log/httpd/error_log <==
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isManip() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 2200, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1217, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1666, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1683, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically in /var/www/html/admin/libraries/sql.functions.php on line 24, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isManip() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 2200, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1217, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1666, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1683, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically in /var/www/html/admin/libraries/sql.functions.php on line 24, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isManip() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 2200, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1217, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1292, referer: http://192.168.2.110/admin/config.php
[Sun Mar 15 20:13:48 2015] [error] [client 192.168.2.50] PHP Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387, referer: http://192.168.2.110/admin/config.php

Hope someone can advice me where to look.
Many thanks in advance…