Minim server 2.2 Activation trouble

[aquad1]

I was successful on activating my license but when I went to scan my library on my Synology NAS, It stopped halfway through. I then decided to deactivate the license and start over.

When I try to activate the license I get this message.

Unable to connect to license server: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Any help greatly appreciated

Tom