VirtualBoxVM instances and Apple ID
If you are signing in on multiple VMs with the same account, Apple's account server may have noticed and stopped you as you have reached the limit for the number of devices on your account. 

Check how many devices you have linked to your account by going to https://www.icloud.com and click Settings. Remove some if there are any that you don't use anymore and try again on the VM.

Clicking the 'Sign Out of All Browsers' button may also help as it will deactivate any sign-ins that may still be valid but unused. You'll have to sign in to your other VMs again afterwards however.