xx

[17:20:28 ERROR]: [ChangeSkin] Tried converting player name to uuid
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 sun.security.ssl.Alerts.getSSLException(Alerts.java:198) ~[?:?]
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1974) ~[?:?]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:345) ~[?:?]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:339) ~[?:?]
at sun.security.ssl.ClientHandshaker.checkServerCerts(ClientHandshaker.java:1968) ~[?:?]
at sun.security.ssl.ClientHandshaker.certificateStatus(ClientHandshaker.java:1798) ~[?:?]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:276) ~[?:?]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1098) ~[?:?]
at sun.security.ssl.Handshaker.processRecord(Handshaker.java:1026) ~[?:?]
at sun.security.ssl.SSLSocketImpl.processInputRecord(SSLSocketImpl.java:1137) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1074) ~[?:?]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973) ~[?:?]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1402) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1429) ~[?:?]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413) ~[?:?]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567) ~[?:?]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:?]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1581) ~[?:?]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1509) ~[?:?]
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:527) ~[?:?]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:329) ~[?:?]
at com.github.games647.changeskin.core.MojangSkinApi.getUUID(MojangSkinApi.java:90) [ChangeSkin.jar:?]
at com.github.games647.changeskin.core.shared.SharedNameResolver.run(SharedNameResolver.java:33) [ChangeSkin.jar:?]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) [mc.jar:git-Spigot-4bd94dc-3a482bd]
at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [mc.jar:git-Spigot-4bd94dc-3a482bd]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
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 sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385) ~[?:?]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:290) ~[?:?]
at sun.security.validator.Validator.validate(Validator.java:264) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:343) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:226) ~[?:?]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:133) ~[?:?]
at sun.security.ssl.ClientHandshaker.checkServerCerts(ClientHandshaker.java:1947) ~[?:?]
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) ~[?:?]
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) ~[?:?]
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[?:?]
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380) ~[?:?]