Getting this error Login to WPMU DEV to enable the power

Getting this error

Login to WPMU DEV
to enable the power of the Dashboard
Your server had a problem connecting to WPMU DEV: "0 " Please try again.
If this problem continues, please contact your host with this error message and ask:
"Is php on my server properly configured to be able to contact https://premium.wpmudev.org/wdp-un.php with a GET HTTP request via fsockopen or CURL?"