Why Panorama (DevKit) device couldn't refresh credentials?

Why Panorama (DevKit) device couldn't refresh credentials? Firstly I got the message that Panorama couldn't refresh the credentials then the application failed down. Logs are here

[2021-12-20T03:58:17.83Z][WARN]-credentials.py:521,Refreshing temporary credentials failed during mandatory refresh period.
[2021-12-20T03:58:17.83Z][WARN]-Traceback (most recent call last):
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 426, in _make_request
[2021-12-20T03:58:17.83Z][WARN]-    six.raise_from(e, None)
[2021-12-20T03:58:17.83Z][WARN]-  File "<string>", line 3, in raise_from
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/local/lib/python3.7/dist-packages/urllib3/connectionpool.py", line 421, in _make_request
[2021-12-20T03:58:17.83Z][WARN]-    httplib_response = conn.getresponse()
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/lib/python3.7/http/client.py", line 1344, in getresponse
[2021-12-20T03:58:17.83Z][WARN]-    response.begin()
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/lib/python3.7/http/client.py", line 306, in begin
[2021-12-20T03:58:17.83Z][WARN]-    version, status, reason = self._read_status()
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/lib/python3.7/http/client.py", line 267, in _read_status
[2021-12-20T03:58:17.83Z][WARN]-    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
[2021-12-20T03:58:17.83Z][WARN]-  File "/usr/lib/python3.7/socket.py", line 589, in readinto
[2021-12-20T03:58:17.83Z][WARN]-    return self._sock.recv_into(b)
[2021-12-20T03:58:17.83Z][WARN]-socket.timeout: timed out
[2021-12-20T03:58:17.83Z][WARN]-During handling of the above exception, another exception occurred:
[2021-12-20T03:58:17.83Z][WARN]-Traceback (most recent call last):