that would be a php config error, your php time isn't set properly.

its actually not bebot that needs fixed, its the php version your using.

Warning: trigger_error(): It is not safe to rely on the system's timezone settings.
You are *required* to use date.timezone settings or the date_default_timezone_set() function.
In case you used any of those methods and youa re still getting this warning, you most likely misspelled the timezone identifier.
We selected "America/Los_Angeles" for "-7.0/DST" instead inf C:\BeBot\Sources\AOChat.php on line 204

This error is PHP related.
Fix your "date.timezone" settings in php.ini or "date_default_timezone_set" in "BeBot/Main.php" line 54
More about timezone in php: http://php.net/manual/en/function.date-default-timezone-set.php
And supported timezones: http://www.php.net/manual/en/timezones.php

You may have two problems, but start with fixing your time error.

are you using the standard documentation php setup?

I personally don't have much experience with php on windows, I will go over the documentation and try and give you a better response.

edit:

Something looks strange.. Is your bebot download recent? try re-downloading the latest version.

In my version I see nothing in AOChat.php about timezones, rather in Main.php on like 54-55 I have this:

// Set the time zone to UTC
date_default_timezone_set('UTC');