In the last version of BeBot I was getting "Could not access server information" message after typing command '!server'. So I examined the code and especially the return value of get_site() method in server_load(). So I had to change this line:

$server = explode("name=\"" . $this -> select_dimension() . "\"", $server["content"]);
with:

$server = explode("name=\"" . $this -> select_dimension() . "\"", $server);
and everything worked fine .