Projeqtor 6.4.3 with PHP 5.3.3 : Error during installation

Hi everyone.

This message just goes back to this error I encountered while installing version 6.4.3.

2017-10-31 22:46:35.758 ===== TRACE =====
2017-10-31 22:46:35.758 ===== TRACE ===== 2 ERRORS DURING UPDATE TO VERSION V6.4.3
2017-10-31 22:46:35.758 ===== TRACE =====
2017-10-31 22:46:35.758 ===== TRACE ===== =====================================
2017-10-31 22:46:35.758 ===== TRACE =====
2017-10-31 22:46:54.992 ===== TRACE ===== NEW CONNECTED USER 'admin'
2017-10-31 22:47:18.167 ***** ERROR ***** [V6.4.3] ERROR *****
2017-10-31 22:47:18.168 ***** ERROR ***** [V6.4.3] on file '/var/www/html/projeqtor/tool/projeqtor.php' at line (2596)
2017-10-31 22:47:18.168 ***** ERROR ***** [V6.4.3] cause = file_get_contents(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution
2017-10-31 22:47:18.168 ===== TRACE ===== Cannot check Version at projeqtor.org/admin/getVersion.php
2017-10-31 22:47:18.168 ===== TRACE ===== Maybe allow_url_fopen is Off in php.ini...
2017-10-31 22:47:36.007 ===== TRACE ===== DISCONNECTED USER 'admin'
2017-10-31 22:51:00.801 ===== TRACE ===== NEW CONNECTED USER 'admin'
2017-10-31 22:51:01.276 ***** ERROR ***** [V6.4.3] ERROR *****
2017-10-31 22:51:01.276 ***** ERROR ***** [V6.4.3] on file '/var/www/html/projeqtor/tool/projeqtor.php' at line (2596)
2017-10-31 22:51:01.276 ***** ERROR ***** [V6.4.3] cause = file_get_contents(): php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution
2017-10-31 22:51:01.276 ===== TRACE ===== Cannot check Version at projeqtor.org/admin/getVersion.php
2017-10-31 22:51:01.276 ===== TRACE ===== Maybe allow_url_fopen is Off in php.ini...
2017-10-31 22:51:56.324 ===== TRACE ===== DISCONNECTED USER 'admin'

Thank you for your consideration

Bests regards

Hi,

Thank you for your answer and your reactivity.
Find attached the log file

Bests regards

Hi,
Thank you for your answer.
Yes it is. I am using PostgreSQL.
Thank a lot.
Have a nice day.
Bests regards.
Mams