Anyone suffered fom HA stopping to log events in device History/Registry?

Configuration
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Hi all, this is my first topic on the Community.

I have a remote HA installation, that have been working decently during months, with several ShellyPlus devices, and several automations, mainly trigering swicthes based on the Sunrise/Sunset (for illumination purposes).

But, suddenly, since morning 14th July, no more entries got logged on the devices registry. The devices are online, they read and update power, temperature, etc. and you can flip the switch On/Off. And you can check on the Automation logs that the sunrise/sunset indeed triggered at expected times, although person there said it didn’t work (light stayed On during the day hours). But… zero entries in devices Registry since 14th July.
if manually clicking switches On/Off several times, you could tell they worked, as the device Power goes up to let’s say 165 W, and goes down to 0 W. But no entries got saved in the device Registry.

Puzzled with this… I remotely restarted HA. And then, magically, event registry started to work again. Tried some switches, and the state changes now got registered. So, seems the restart solved the issue.

Anyone experienced something like this?

Thanks.

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Full disk?
A restart will shuffle the logs, so the old homeassistant.log.1 gets deleted and the old homeassistant.log gets renamed to homeassistant.log.1 before a new empty homeassistant.log gets created.
This might free a bit of space, but if the disk is that full then it will only be for a short time.
Either increase the disk size then or lower the logging settings.

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OK, thanks. That may be a point. I will check the disk space.