Failed Update Freenas 11.1u7 to 11.2

[InGenetic]

hi all,

i have 5 freenas here, 3 of them already updated to latest version, i try to update 2 others, but one of them failed to update,
the message like below :

Request Method: POST
Request URL: http://192.168.10.225/system/update/check/?uuid=fd89e6705de64a3c9aa39d7e45956f9d
Software Version: FreeNAS-11.1-U7 (b45bfcf29)
Exception Type: MiddlewareError
Exception Value:
[MiddlewareError: base-os]
Exception Location: ./freenasUI/system/views.py in update_check, line 1595
Server time: Sat, 18 Apr 2020 20:55:15 +0700
Traceback
Environment:

Software Version: FreeNAS-11.1-U7 (b45bfcf29)
Request Method: POST
Request URL: http://192.168.10.225/system/update/check/?uuid=fd89e6705de64a3c9aa39d7e45956f9d


Traceback:
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
42. response = get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
178. response = middleware_method(request, callback, callback_args, callback_kwargs)
File "./freenasUI/freeadmin/middleware.py" in process_view
162. return login_required(view_func)(request, *view_args, **view_kwargs)
File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File "./freenasUI/system/views.py" in update_check
1595. raise MiddlewareError(handler.error)

Exception Type: MiddlewareError at /system/update/check/
Exception Value: [MiddlewareError: base-os]



Request information
GET
Variable Value
uuid 'fd89e6705de64a3c9aa39d7e45956f9d'

can anyone help ? please advice ..


Regards,