Can anyone tell me what this mean? thank you

javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: Got untrusted Certificate Chain  at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)  at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1902)  at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)  at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)  at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1338)  at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:154)  at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)  at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)  at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1032)  at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1328)  at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)  at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)  at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:515)  at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)  at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1090)  at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250)  at com.sygate.scm.server.task.TelemetrydataCommunicator.postRequest(TelemetrydataCommunicator.java:214)  at com.sygate.scm.server.task.TelemetrydataCommunicator.sendTelemetrydata(TelemetrydataCommunicator.java:143)  at com.sygate.scm.server.task.TelemetrydataTask.execute(TelemetrydataTask.java:164)  at com.sygate.scm.server.task.MonitoredTimerTask.run(MonitoredTimerTask.java:22)  at java.util.TimerThread.mainLoop(Timer.java:555)  at java.util.TimerThread.run(Timer.java:505) Caused by: java.security.cert.CertificateException: Got untrusted Certificate Chain  at com.sygate.scm.common.communicate.CustomSSLSocketFac