SSPR Failure to connect to Breach Database API

We implemented the SSPR breach check.  It worked for a couple of days, but now we're getting an API error.

 

WARN , util.PwmPasswordRuleValidator, Problem while connecting to external breach database Failed to connect to api.pwnedpasswords.com/2606:4700:0:0:0:0:6811:ac66:443

 

Is anyone else experiencing this issue? I've read on the site for haveibeenpwned that an API key is possibly needed, does anyone know how to this key is implemented?