This is the error I'm getting
Host details:VBoxManage: error: This VM was configured to use 3D acceleration. However, the 3D support of the host is not working properly and the VM cannot be
started. To fix this problem, either fix the host 3D support (update the host graphics driver?) or disable 3D acceleration in the VM settings (VE
RR_NOT_AVAILABLE)
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component ConsoleWrap, interface IConsole
Distributor ID: Ubuntu
Description: Ubuntu 18.04 LTS
Release: 18.04
Codename: bionic
Graphics driver: Red Hat, Inc Virtio SCSI
I've got guest additions installed on the guest machine.