Can not vagrant up

[Kaifu-Ji]

It said
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Box 'ubuntu/trusty32' could not be found. Attempting to find and install...
default: Box Provider: virtualbox
default: Box Version: >= 0
The box 'ubuntu/trusty32' could not be found or
could not be accessed in the remote catalog. If this is a private
box on HashiCorp's Atlas, please verify you're logged in via
vagrant login. Also, please double-check the name. The expanded
URL and error message are shown below:

URL: ["https://atlas.hashicorp.com/ubuntu/trusty32"]
Error:
How to solve it?
Thx

[OrdinaryAtom]

I wasn't able to "vagrant up" with the 1.8.7 build on the website. Rolling back to 1.8.6 seemed to fix the issue for me.