Guru Meditaion Critical Error when starting any Guest

[timothy1205]

I need some assistance in figuring out what is wrong with my VirtualBox Manager. A week or so ago all my Guests worked fine. Since then nothing was changed (to my knowledge anyway) and I am met with the 'Guru Meditation critical error' prompt immediately upon starting any of my guests (even new freshly created ones). For clarification, my guests consist of Windows 10, Ubuntu, and PopOS (ubuntu based) installations. The attached logs are from one of my Windows 10 guests. If anyone can provide some assistance in identifying and resolving whatever issue I am having, it would be greatly appreciated. This is the first time I have experienced such an issue and I am not sure where to begin debugging.

[scottgus1]

You're getting VERR_INVALID_STATE as soon as the guest attempts to start. Websearching

verr_invalid_state site:forums.virtualbox.org

brings up a few posts that suggest another virtualizer, like KVM, may have started on your host PC. Check if KVM is installed.

[timothy1205]

After looking up that error myself I found that I had a multipass instance running (which I guess I created when messing around with creating snaps for ubuntu's snapcraft). Disabling the running instance(s) resolved the issue. Thanks.

[scottgus1]

Very good! Glad you're running again.