Vagrant suddenly failed to start.

before the installation of vagrant,php, the related environment has been set up, but today I use vagrant up to find that it has been stuck here, as follows

$ vagrant up
Bringing machine "default" up with "virtualbox" provider...
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: bridged
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Running "pre-boot" VM customizations...
==> default: Booting VM...

I used it well a few days ago, and suddenly this happened, and I vagrant halt every time I quit, and at this time I found that if I went to click on virtualBox, I found that it could start normally again, as follows

$ vagrant up
Bringing machine "default" up with "virtualbox" provider...
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: bridged
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Running "pre-boot" VM customizations...
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Warning: Connection reset. Retrying...
    default: Warning: Connection aborted. Retrying...
    default: Warning: Connection reset. Retrying...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version o                                                                                                                                   f
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you                                                                                                                                    see
    default: shared folder errors, please make sure the guest additions within t                                                                                                                                   he
    default: virtual machine match the version of VirtualBox you have installed                                                                                                                                    on
    default: your host and reload your VM.
    default:
    default: Guest Additions Version: 5.1.38
    default: VirtualBox Version: 5.2
==> default: Configuring and enabling network interfaces...
==> default: Mounting shared folders...
    default: /vagrant => D:/soft/vagrantbox/www
    default: /var/www/html => D:/soft/vagrantbox/www
==> default: Machine already provisioned. Run `vagrant provision` or use the `--                                                                                                                                   provision`
==> default: flag to force provisioning. Provisioners marked to run always will still run

it"s impossible to double-click on virtualBox every time. What"s the problem? it can"t be started.
related version: win10 vagrant2.1.2 virtualBox5.2.18