Looking at the log for that sensor:
Log Details (ERROR)
Logger: homeassistant.helpers.entity
Source: helpers/template.py:221
First occurred: 2:39:36 PM (1 occurrences)
Last logged: 2:39:36 PM
Update for sensor.rear_sliding_door_signal fails
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 279, in async_update_ha_state
await self.async_device_update()
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 474, in async_device_update
await self.async_update()
File "/usr/src/homeassistant/homeassistant/components/template/sensor.py", line 224, in async_update
self._state = self._template.async_render()
File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 221, in async_render
return compiled.render(kwargs).strip()
File "/usr/local/lib/python3.7/site-packages/jinja2/environment.py", line 1090, in render
self.environment.handle_exception()
File "/usr/local/lib/python3.7/site-packages/jinja2/environment.py", line 832, in handle_exception
reraise(*rewrite_traceback_stack(source=source))
File "/usr/local/lib/python3.7/site-packages/jinja2/_compat.py", line 28, in reraise
raise value.with_traceback(tb)
File "", line 1, in top-level template code
TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'
Looking at the log for that sensor: Log Details (ERROR) Logger: homeassistant.helpers.entity Source: helpers/template.py:221 First occurred: 2:39:36 PM (1 occurrences) Last logged: 2:39:36 PM
Update for sensor.rear_sliding_door_signal fails Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 279, in async_update_ha_state await self.async_device_update() File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 474, in async_device_update await self.async_update() File "/usr/src/homeassistant/homeassistant/components/template/sensor.py", line 224, in async_update self._state = self._template.async_render() File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 221, in async_render return compiled.render(kwargs).strip() File "/usr/local/lib/python3.7/site-packages/jinja2/environment.py", line 1090, in render self.environment.handle_exception() File "/usr/local/lib/python3.7/site-packages/jinja2/environment.py", line 832, in handle_exception reraise(*rewrite_traceback_stack(source=source)) File "/usr/local/lib/python3.7/site-packages/jinja2/_compat.py", line 28, in reraise raise value.with_traceback(tb) File "", line 1, in top-level template code TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'