PVOutput suddenly stopped

I have been using the PVOutput platform for quite som time without issue. For whatever reason is suddenly stopped working. I installed an App “PV Display” on my mobile phone and I though that I might be over the maximum number of request.

I checked the status with

 http://pvoutput.org/service/r2/getstatus.jsp?key=xxxx&sid=zzzz

This give me however a normal reply

20201114,15:10,1219,228,NaN,NaN,0.069,32.2,236.4

I upgraded to the latest HassOS 4.16 to make sure that that was not the issue

I also tested the REST component

- platform: rest
  resource: http://pvoutput.org/service/r2/getstatus.jsp?key=xxx&sid=zzzz
  name: Current power generated
  value_template: '{% set list = value.split( "," ) %} {{ "{0:,}".format(float(list[3])) }}'
  unit_of_measurement: Watt

- platform: pvoutput
  name: pvoutput
  system_id: zzzz
  api_key: xxxxx
  scan_interval: 200

I keep getting the folowing error

2020-11-16 09:50:43 ERROR (MainThread) [homeassistant.components.rest.data] Error fetching data: http://pvoutput.org/service/r2/getstatus.jsp?key=xxxx&sid=zzz failed with [Errno -2] Name does not resolve

What is going wrong here ?