Çözüldü Böyle bir log hatası var nedir acaba ? anlayamadım da

[22:00:05 INFO]: AhmetCeliks[/127.0.0.1:51129] logged in with entity id 62 at ([spawn]0.42122926279620093, 46.0, -0.6999999880790709)
[22:00:06 WARN]: Couldn't look up profile properties for com.mojang.authlib.GameProfile@16632d13[id=ec4cc983-f8b7-4ced-83d8-29dcba8441f1,name=GokselKirca,properties={},legacy=false]
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:71) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:175) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:168) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.TileEntitySkull$1.load(TileEntitySkull.java:70) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.TileEntitySkull$1.load(TileEntitySkull.java:1) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache.get(LocalCache.java:3934) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821) [spigot.jar:git-Spigot-db6de12-18fbb24]
at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827) [spigot.jar:git-Spigot-db6de12-18fbb24]
at net.minecraft.server.v1_8_R3.TileEntitySkull$3.run(TileEntitySkull.java:172) [spigot.jar:git-Spigot-db6de12-18fbb24]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_281]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_281]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]
Caused by: 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
at sun.security.ssl.Alert.createSSLException(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.fatal(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.fatal(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.fatal(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLHandshake.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLTransport.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.8.0_281]
at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:126) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
... 16 more
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(Unknown Source) ~[?:1.8.0_281]
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source) ~[?:1.8.0_281]
at sun.security.validator.Validator.validate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLHandshake.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLTransport.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.8.0_281]
at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:126) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
... 16 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source) ~[?:1.8.0_281]
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source) ~[?:1.8.0_281]
at java.security.cert.CertPathBuilder.build(Unknown Source) ~[?:1.8.0_281]
at sun.security.validator.PKIXValidator.doBuild(Unknown Source) ~[?:1.8.0_281]
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source) ~[?:1.8.0_281]
at sun.security.validator.Validator.validate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLHandshake.consume(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.HandshakeContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.TransportContext.dispatch(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLTransport.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.decode(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_281]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.8.0_281]
at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:126) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
... 16 more
[22:00:07 WARN]: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to req
[22:00:07 WARN]: at sun.security.ssl.Alert.createSSLException(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.TransportContext.fatal(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.TransportContext.fatal(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.TransportContext.fatal(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLHandshake.consume(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.TransportContext.dispatch(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLTransport.decode(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
[22:00:07 WARN]: at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
[22:00:07 WARN]: at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
[22:00:07 WARN]: at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
[22:00:07 WARN]: at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
[22:00:07 WARN]: at java.net.HttpURLConnection.getResponseCode(Unknown Source)
[22:00:07 WARN]: at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
[22:00:07 WARN]: at com.movingdev.minecraft.api.jsonrest.JsonRestCall.requestJsonObject(JsonRestCall.java:65)
[22:00:07 WARN]: at com.movingdev.minecraft.api.mcitems.PlayerSkull.getPlayerSkulls(PlayerSkull.java:29)
[22:00:07 WARN]: at com.movingdev.minecraft.api.mainclasses.MovingDevApi.getPlayerSkulls(MovingDevApi.java:70)
[22:00:07 WARN]: at com.movingdev.minecraft.rewardpro.model.RewardProPlayer.setBukkitPlayer(RewardProPlayer.java:66)
[22:00:07 WARN]: at com.movingdev.minecraft.rewardpro.mainclasses.RewardProPlayerHandler.lambda$doOnPlayerJoin$1(RewardProPlayerHandler.java:43)
[22:00:07 WARN]: at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
[22:00:07 WARN]: at java.util.concurrent.FutureTask.run(Unknown Source)
[22:00:07 WARN]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
[22:00:07 WARN]: at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
[22:00:07 WARN]: at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[22:00:07 WARN]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[22:00:07 WARN]: at java.lang.Thread.run(Unknown Source)
[22:00:07 WARN]: Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[22:00:07 WARN]: at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
[22:00:07 WARN]: at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
[22:00:07 WARN]: at sun.security.validator.Validator.validate(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
[22:00:07 WARN]: at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
[22:00:07 WARN]: ... 30 more
[22:00:07 WARN]: Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[22:00:07 WARN]: at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
[22:00:07 WARN]: at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
[22:00:07 WARN]: at java.security.cert.CertPathBuilder.build(Unknown Source)
[22:00:07 WARN]: ... 36 more
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