Vagrant plugin install vagrant-vbguest error

Hello All,
When I am trying to run the following command I am getting error:
vagrant plugin install vagrant-vbguest --debug

Error:
Source: https://gems.hashicorp.com/
INFO interface: Machine: error-exit [“Vagrant::Errors::PluginSourceError”, “Vagrant failed to load a configured plugin source. This can be caused\nby a variety of issues including: transient connectivity issues, proxy\nfiltering rejecting access to a configured plugin source, or a configured\nplugin source not responding correctly. Please review the error message\nbelow to help resolve the issue:\n\n SSL_connect returned=1 errno=0 state=error: certificate verify failed (https://gems.hashicorp.com/specs.4.8.gz)\n\nSource: https://gems.hashicorp.com/”]

Any help will be highly appreciated.

Thanks
Chandna

May be firewall issues
Please check this link

Unable to install plugin vagrant-vbguest