I'm finding that errors in Drupal 6 which might have been just an alert, totally crash the system in Drupal 7.

I did a backtrace on the error and got this information.

Something in chatbar does not work.

chatroom bar - causes major error

Array ( [0] => Array ( [file] => /var/aegir/platforms/7/servers/drupal-7.14/includes/common.inc [line] => 7633 [function] => entity_get_controller [args] => Array ( [0] => user ) ) [1] => Array ( [file] => /var/aegir/platforms/7/servers/drupal-7.14/modules/user/user.module [line] => 287 [function] => entity_load [args] => Array ( [0] => user [1] => Array ( ) [2] => Array ( ) [3] => ) ) [2] => Array ( [file] => /var/aegir/platforms/7/modules/all/chatroom/chatroom_chatbar/chatroom_chatbar.module [line] => 24 [function] => user_load_multiple [args] => Array ( [0] => Array ( ) ) ) [3] => Array ( [file] => /var/aegir/platforms/7/modules/all/chatroom/chatroom_chatbar/chatroom_chatbar.module [line] => 86 [function] => chatroom_chatbar_user_list [args] =>