That's the error that appeared with VirtualBox 6.x. At this point you should try to uninstall it following the previous steps as outlined above, and then move on to VirtualBox 7.x as per the instructions in this thread:
Alternatively, you could try using KVM instead for your virtual machines. It's a native technology built into the Linux kernel and it works much better than VirtualBox. The only "downsides" is that is not as portable to other platforms, and I'm not really sure how well it handles Windows guests.