Hi i bought spine couple months ago and i installed it and it worked fine, i didnt use it afterwards because i was programing my game and now when i needed to animate my character i get this error :

sorry the server could not be contacted

and yes i googled and tried everything on firewall didnt work

here is what the log file says :

Spine Launcher 3.8.75
Esoteric Software LLC (C) 2013-2019 | http://esotericsoftware.com
Windows 10 Enterprise x86 10.0
WARNING: Unable to reach the 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.con.run(SourceFile:1324)
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
WARNING: Unable to reach the 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.con.run(SourceFile:1324)
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