*Error codes*

 1001: User tried to reach the registration page without access.
 1002: User not allowed to activate him or herself.
 2001: Could not edit base group settings via rest API.
 2002: Could not edit group settings via rest API.
 2101: The group invitation was not accepted.
 2102: The invitation was not rejected.
 2103: We could not uninvite the user.
 2301: We could not save the bookmarks
 2401: The profile data was not saved.
 2501: di-event - The user could not attend to this event.
 2601: There was an error updating the notification.
 2701: The user could not join the group.
 2702: There was an error leaving the group.
 2703: There was an error banning the member from the group
 2704: There was an error unbanning the member from the group.
 2705: There was an error accepting invitation for this user.
 2706: There was an error sending a membership request.
 2707: There was an error accepting the membership request.
 2708: There was an error rejecting membership.
 2801: Could not find the forum connected to this group.
