GS 3.3.1 error log

[phpman]

Dear Shawn,

today i found any error inside my installation like this:

Code:

[29-Apr-2014 10:00:39] PHP Warning:  date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/vhosts/domain.com/httpdocs/root/admin/inc/logging.class.php on line 49
[29-Apr-

whats wrong in this case i set the time zone in the settings correct.

Hope you can help.

best regards,

Harald