After updated Spigot to get working timings, I got this error at the console.

[22:49:45 WARN]: Could not paste timings
javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1906) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1889) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1410) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) ~[?:1.8.0_102]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559) ~[?:1.8.0_102]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:1.8.0_102]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1283) ~[?:1.8.0_102]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1258) ~[?:1.8.0_102]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) ~[?:1.8.0_102]
at org.bukkit.command.defaults.TimingsCommand$PasteThread.run(TimingsCommand.java:236) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:90) ~[?:1.8.0_102]
at sun.security.validator.Validator.getInstance(Validator.java:179) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:312) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:171) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:184) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_102]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_102]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_102]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_102]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_102]
... 7 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200) ~[?:1.8.0_102]
at java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120) ~[?:1.8.0_102]
at java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104) ~[?:1.8.0_102]
at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:88) ~[?:1.8.0_102]
at sun.security.validator.Validator.getInstance(Validator.java:179) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:312) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:171) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:184) ~[?:1.8.0_102]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_102]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491) ~[?:1.8.0_102]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) ~[?:1.8.0_102]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979) ~[?:1.8.0_102]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:914) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375) ~[?:1.8.0_102]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) ~[?:1.8.0_102]
... 7 more

Can you help me, please?