It's not any error. The only thing I did yesterday was start this post. I did shut down my browser yesterday evening. Today I had to log in again.
-- SwampRabbitMusicElectronics
I see. Just to be sure: it sets a cookie called "ModularGrid[remember_me]"
That won't work in privacy mode of the browser and also there might be ad blocker browser extensions that block that cookie?
Beep, Bopp, Bleep: info@modulargrid.net