Remote end closed connection without response

[a81j]

For the last couple of days been getting this error regularly. Only two of three mowers are appearing now too.

Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/urllib3/connectionpool.py", line 703, in urlopen
httplib_response = self._make_request(
File "/usr/local/lib/python3.10/site-packages/urllib3/connectionpool.py", line 449, in _make_request
six.raise_from(e, None)
File "", line 3, in raise_from
File "/usr/local/lib/python3.10/site-packages/urllib3/connectionpool.py", line 444, in _make_request
httplib_response = conn.getresponse()
File "/usr/local/lib/python3.10/http/client.py", line 1374, in getresponse
response.begin()
File "/usr/local/lib/python3.10/http/client.py", line 318, in begin
version, status, reason = self._read_status()
File "/usr/local/lib/python3.10/http/client.py", line 287, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response