nanobox fails to start due to nanobox-vpn not starting

[baybal]

2019-02-15 12:59:11 ERROR server:reExecPrivilageStart:util.PrivilegeExec("/usr/local/bin/nanobox" env server start): exit status 1
ine 1 [running]:
runtime/debug.Stack(0xc4201bba40, 0x9bde80, 0xdb1e30)
        /home/travis/.gimme/versions/go1.9.linux.amd64/src/runtime/debug/stack.go:24 +0xa7
main.main.func1()
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/main.go:108 +0x6e
panic(0x9bde80, 0xdb1e30)
        /home/travis/.gimme/versions/go1.9.linux.amd64/src/runtime/panic.go:491 +0x283
github.com/nanobox-io/nanobox/util/service.Stop(0xa67cef, 0xb, 0x0, 0x0)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/util/service/stop_unix.go:12 +0x1c4
github.com/nanobox-io/nanobox/processors/server.Setup(0xa67cfa, 0xb)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/processors/server/setup.go:27 +0x71
github.com/nanobox-io/nanobox/commands/env.serverStartFn(0xdbf6a0, 0xc420299fb0, 0x0, 0x1)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/commands/env/server.go:56 +0x22
github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra.(*Command).execute(0xdbf6a0, 0xc420299fa0, 0x1, 0x1, 0xdbf6a0, 0xc420299fa0)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra/command.go:569 +0x20d
github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xdbb2a0, 0xc4201bbe60, 0xc4201bbe68, 0x1a)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra/command.go:656 +0x368
github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra.(*Command).Execute(0xdbb2a0, 0xa93240, 0xa6410e)
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/vendor/github.com/spf13/cobra/command.go:615 +0x2b
main.main()
        /home/travis/gopath/src/github.com/nanobox-io/nanobox/main.go:121 +0x476

2019-02-15 12:59:11 *LOG* Closing log now

After looking up https://github.com/nanobox-io/nanobox/blob/master/processors/server/setup.go

It seems that it fails to launch nanobox-vpn

Any further suggestions on debugging that?