我在WIKI网站上收到的错误如下：
Warning: require_once() [function.require-once]: 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 'UTC' for 'UTC/0.0/no DST' instead in /home/dorotinf/public_html/wikigenia/includes/GlobalFunctions.php on line 2300.
Parse error: syntax error, unexpected $end, expecting T_VARIABLE or '$' in /home/dorotinf/public_html/wikigenia/includes/GlobalFunctions.php on line 2300.
但第2300行不涉及时区。
在更新网站的软件后收到此警告，现在网站无法打开。 有谁知道要做什么？