I have a problem when installing Ubuntu (I cannot select installation type)

system-installation

When I try to install Ubuntu from a Live session, I do not see any options on the "Installation type" page:

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How can I solve this?

Even when Gparted is closed i get this same interface


I see that you have GParted running. GParted makes all the drives inaccessible.

Close both GParted and the installer, and run the installer again.

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