Starting probelm

[Bert84]

Hello,
I have a backup Raspberry PI. When I start it (with a copy of Domoticz), I get a black screen. In the upper left corner there is a double point and a pull down menu. The pull down menu is empty. I have made a new SD card wih domoticz, but that doesn't work.Does anyone know what to do?

[SweetPants]

Clear your browser cache first

[Bert84]

That's the trick.
Thank you, SweetPants!!