Error doing job: Task exception was never retrieved (None)

Hello! I encountered the following error in the logs: ``` Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 280, in _handle_refresh_interval await self._async_refresh(log_failures=True, scheduled=True) File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 491, in _async_refresh self.async_update_listeners() ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 190, in async_update_listeners update_callback() ~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 571, in _handle_coordinator_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/update/__init__.py", line 415, in state if (installed_version := self.installed_version) is None or ( ^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/keenetic_api/update.py", line 75, in installed_version return self.coordinator.data.get("current").get("title") ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'NoneType' object has no attribute 'get' ```