Oh, when I started to install ZorinOS, I removed the USB pretty early and got that screen. What should I do?
Which installation method are you choosing i.e. 1. Erase drive and install Zorin only, 2. Zorin alongside Windows, 3. Something else (manual installation)?
Which USB burner did you use e.g. Balena, Rufus etc ?
If you pulled the installation USB before being told to do so, that could have been the problem.
Have you tried installing again?
Some basic pre-installation advice can be read here: Before you install
Welcome @Emine!
You can try installing it again by rebooting again into the same USB drive and going through setup. This would work well if you selected erase drive and download Zorin during the setup.
Welcome to the Forum!
What means ''pretty early''? During the Installation? For further Steps: Do planed to create a Dual-Boot System or will this be Zorin-only?