Zabbix-1.8.1 : Problem with screens and graphs

[patrick]

When I open a screen or a graph I have some errors.
Example of errors for a screen:
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/include/graphs.inc.php:1022]
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/include/screens.inc.php:1039]
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/include/screens.inc.php:1039]
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/screens.php:241]

And for a graph :
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/include/graphs.inc.php:1022]
mktime() expects parameter 6 to be long, string given[/var/www/html/zabbix/charts.php:288]


What could be the problem?
Thanks
Patrick

[patrick]

Nobody to help me?

Nobody could help me?
It's a CentOS intallation : release 5.4 (64bits)

rpm -qa | grep mysql
mysql-5.0.86-jason.2
mysql-server-5.0.86-jason.2
php-mysql-5.2.11-jason.1

# rpm -qa | grep php
php-devel-5.2.11-jason.1
php-ldap-5.2.11-jason.1
php-common-5.2.11-jason.1
php-cli-5.2.11-jason.1
php-pgsql-5.2.11-jason.1
php-gd-5.2.11-jason.1
php-mbstring-5.2.11-jason.1
php-bcmath-5.2.11-jason.1
php-5.2.11-jason.1
php-pdo-5.2.11-jason.1
php-pear-1.7.2-2.jason.1
php-mysql-5.2.11-jason.1
php-odbc-5.2.11-jason.1

Thanks
Patrick