VirtualBox Guest Additions didn't install in macOS Catalina

[DylanF555]

I didn't install the graphics drivers to macOS Catalina, error.
Photo is attachment.

[scottgus1]

You're posting in Mac Hosts, and the Guest Additions go in the guest.

Are you really talking about the guest, the VM?

Start the VM from full power off, not save-state. Run until you see the problem happen, then shut down the VM from within the VM OS if possible. If not possible, close the Virtualbox window for the VM with the Power Off option set.

Please right-click the VM in the main Virtualbox window's VM list, choose Show Log. Save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

[DylanF555]

Is attachmented the log file.

[scottgus1]

Not a Mac computer, unfortunately, so we can't help.

Windows host OS running a Mac guest is only allowed if the physical computer is real Mac hardware.
OSX guests on non-Apple hardware