Hello,

Today I can't connect to Spine with the message "sorry, the server could not be contacted", blablabla.

It seems to be up here :
https://downforeveryoneorjustme.com/esotericsoftware.com

I could use it without any problem yesterday. I checked my firewall, even deactivated it and it doesn't change anything. I did not install, uninstall or update any program these last day. So I post here the log and I can see there is a problem but I need help to understand how to fix it :

Spine Launcher 3.7.81
Esoteric Software LLC (C) 2013-2019
Windows 10 Home x86 10.0
Unable to reach server (EU):
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.ssl.Alerts.getSSLException(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at java.base/sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at java.base/sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.checkServerCerts(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at java.base/sun.security.ssl.Handshaker.processLoop(Unknown Source)
at java.base/sun.security.ssl.Handshaker.processRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.processInputRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at tzax.v.run(SourceFile:1196)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at java.base/sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at java.base/sun.security.validator.Validator.validate(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 15 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.base/java.security.cert.CertPathBuilder.build(Unknown Source)
... 21 more
Unable to reach server:
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.ssl.Alerts.getSSLException(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at java.base/sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at java.base/sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.checkServerCerts(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at java.base/sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at java.base/sun.security.ssl.Handshaker.processLoop(Unknown Source)
at java.base/sun.security.ssl.Handshaker.processRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.processInputRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at tzax.v.run(SourceFile:1196)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at java.base/sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at java.base/sun.security.validator.Validator.validate(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 15 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.base/java.security.cert.CertPathBuilder.build(Unknown Source)
... 21 more

Thank you for your time and help