| error.unknown | Unknown error. Please report this to the administrator. |
| error.bad.credentials | Username/email and/or password are incorrect. |
| error.short.login | Login is too short |
| error.reg.disabled | Registration disabled |
| error.login.inuse | The username is already used |
| error.email.inuse | The mail address is already registered |
| error.notallowed | Admin authorization required |
| error.nogroup | User is not assigned to group. |
| error.notactivated | Your account is not activated. Please use the link in the email you received during registration. |
