Error in Virtual Box: Failed to open a session for the virtual machine I want to install Ubuntu 20.10 on Virtual Box 6.1.18, when I create the virtual machine is okay so I press start but when I want to search the ISO file this error appears to me.

I saw different solutions in the terminal for Windows, but any for Mac helped me. Downgrade Virtual Box isn't an option because my professor requires this version.
The solution is just choose your ISO file not from start button, instead choose from Settings/Storage/Controller: IDE