Vagrant up not working (MacOS)

[xolge]

Last week, I was able to successfully set up Scotch Box on my Mac and I was able to vagrant up/reload it multiple times. Earlier today, I was attempting to setup another (and different) instance for the Scotch Box, but resulted in an error. By the way, this is for the Pro version.

My attempts were in the following order:
git clone (both regular pro and NGINX pro)
cd on project folder
(I tried changing the VagrantFile by using the NFS as well as the regular)
vagrant plugin install vagrant-vbguest
vagrant up

And i tried the following commands:
vagrant box outdated (failed; same error as vagrant up)
vagrant box update (success; running latest version [v1.5] )

The error was: You may have encountered a bug in the Ruby interpreter or extension libraries.
So, I updated ruby; it still failed.

Anyone know how to solve this one? Or is this a ruby issue?

Versions:
OS: Mac OS X 10.12.6
Vagrant: 2.2.7
VirtualBox: Version 6.0.18 r136238 (Qt5.6.3)
ruby: 2.3.7p456 (2018-03-28 revision 63024) [universal.x86_64-darwin16]

[xolge]

Just in case as well, I added the concern to ruby bug reports:
https://bugs.ruby-lang.org/issues/16804