Hi ntozier,Thanks for your replay, this is my system info PHP 5.1.6 (cli) mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnuServer version: Apache/2.2.3 / httpd-2.2.3-45.el5.centos.1file location: /system/upload/scp/upgrade.phpwhen I try to execute this file from the chrome browser http://ServerIp/IT/scp/upgrade.php Nothing happened.Thank youKonstantin