I have just purchased Spine Essentials, downloaded the dmg from my nearest server (Germany). I installed Spine successfully, was able to launch it and, on seeing that the resolution was tiny, went to Settings and set the interface resolution to the maximum setting. I then quit Spine and relaunched and then got the 'Sorry, the server could not be contacted' message.
I've uninstalled and reinstalled Spine. I don't have a firewall running.
I launched Spine from the command line and get the following error message. Can you help? :
Spine Launcher 3.7.41
Esoteric Software LLC (C) 2013-2018
Warning: the fonts "Times" and "Lucida Bright" are not available for the Java logical font "Serif", which may have unexpected appearance or behavior. Re-enable the "Times" font to remove this warning.
Mac OS X x86_64 10.16
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.w.run(SourceFile:1183)
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.w.run(SourceFile:1183)
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 (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.w.run(SourceFile:1183)
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.w.run(SourceFile:1183)
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