Curl GET for blinds in Configuration.yaml all of the sudden throws errors

So for nearly a year I’ve been controlling some custom blinds with covers defined in the configuration.yaml file. A couple days ago I see there is an core upgrade and I’m about 6 to 8 weeks behind on it so I press upgrade. After it boots I notice a lot of my stuff wasn’t working right like most ZWave switches and my custom blinds controller. Thinking some things broke in the upgrade I did a restore back to an old version in November and all the ZWave stuff worked again good but the blinds still wont respond. Nothing changed with the blinds and if I enter the web address in a browser from my laptop or phone they still work fine. But now HA throws the following errors:

/bin/sh: state_command: not found
2021-04-08 19:28:53 ERROR (SyncWorker_0) [homeassistant.components.command_line] Command failed: state_command curtain
2021-04-08 19:28:53 ERROR (MainThread) [homeassistant.helpers.entity] Update for cover.blinds_right fails
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 292, in async_update_ha_state
    await self.async_device_update()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 490, in async_device_update
    raise exc
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/command_line/cover.py", line 145, in update
    self._state = int(payload)
ValueError: invalid literal for int() with base 10: ''
/bin/sh: state_command: not found
2021-04-08 19:28:53 ERROR (SyncWorker_1) [homeassistant.components.command_line] Command failed: state_command curtain
2021-04-08 19:28:53 ERROR (MainThread) [homeassistant.helpers.entity] Update for cover.blinds_left fails
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 292, in async_update_ha_state
    await self.async_device_update()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 490, in async_device_update
    raise exc
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/homeassistant/homeassistant/components/command_line/cover.py", line 145, in update
    self._state = int(payload)
ValueError: invalid literal for int() with base 10: ''

The code used in the configuration is as follows:

cover:        
  - platform: command_line
    covers:
      curtain:
        command_open: "/usr/bin/curl -X GET http://10.0.0.25/Blind/ID=1/level=080"
        command_close: "/usr/bin/curl -X GET http://10.0.0.25/Blind/ID=1/level=001"
        command_state: state_command curtain
        value_template: >
          {% if value == 'open' %}
          080
          {% elif value == 'closed' %}
          001
          {% endif %}
        friendly_name: Blinds - Right
  - platform: command_line
    covers:
      curtain:
        command_open: "/usr/bin/curl -X GET http://10.0.0.25/Blind/ID=2/level=080"
        command_close: "/usr/bin/curl -X GET http://10.0.0.25/Blind/ID=2/level=001"
        command_state: state_command curtain
        value_template: >
          {% if value == 'open' %}
          080
          {% elif value == 'closed' %}
          001
          {% endif %}
        friendly_name: Blinds - Left

Any thoughts from the experts where I should look to trace this issue back down and why all the sudden it just became an issue even after rolling back?

Withdrawing question it’s been solved. Someone plugged in an old WIFI device not used in some time which kept trying to compete with the blinds for the same IP address.