I recently upgraded my MacBook version to Big Sur 11.3.1 followed by VirtualBox to 6.1.22, since then when I try to power on a new VM to build a new ubuntu server getting the below error.
How I resolved
Big Sur update having many security fixes and control over every application downloaded from internet.
Followed procedure outlined below
After restart I was able power on but while selecting the image again it’s failing with below error
So, to resolve the above error I have followed below apple articles