[01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.net.
www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.net.
www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.net.
www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.net.
www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.net.
www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at java.net.URL.openStream(URL.java:1045)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at fr.klemms.slotmachine.apache.org.apache.commons.io.IOUtils.toString(IOUtils.java:1198)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at fr.klemms.slotmachine.KlemmsUpdate$1.run(KlemmsUpdate.java:75)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:81)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at java.lang.Thread.run(Thread.java:745)
 [01:49:23] [Craft Scheduler Thread - 6/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
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.validator.Validator.validate(Validator.java:260)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: ... 20 more
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
 [01:49:23] [Craft Scheduler Thread - 6/WARN]: ... 26 more