Edit: If this doesn’t help, I can’t see that the error you get reflects the automation example you put up. If you have any other automations, please put them up. Might help if any have any reference to 'second' or 'seconds'
I already tried the time and platform_time, but as you also stated, there is no seconds in my automation. And the automation I listed is the only one available. Even without any automations I het this error… very strange indeed.