[21:38:04 WARN]: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
[21:38:04 WARN]:
[21:38:04 WARN]: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
[21:38:04 WARN]:        at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
[21:38:04 WARN]:        at java.sql.DriverManager.getConnection(Unknown Source)
[21:38:04 WARN]:        at java.sql.DriverManager.getConnection(Unknown Source)
[21:38:04 WARN]:        at com.ldprison.lddatabase.context.AccountLinkContext.getAccountLinkByPlayer(AccountLinkContext.java:76)
[21:38:04 WARN]:        at com.ldprison.lddatabase.managers.AccountLinkManager.lambda$getAccountLinkByPlayer$1(AccountLinkManager.java:32)
[21:38:04 WARN]:        at com.ldprison.lddatabase.QueryHandler.lambda$execute$0(QueryHandler.java:59)
[21:38:04 WARN]:        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[21:38:04 WARN]:        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[21:38:04 WARN]:        at java.lang.Thread.run(Unknown Source)
[21:38:04 WARN]: Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
[21:38:04 WARN]:
[21:38:04 WARN]: The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
[21:38:04 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[21:38:04 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
[21:38:04 WARN]:        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
[21:38:04 WARN]:        at java.lang.reflect.Constructor.newInstance(Unknown Source)
[21:38:04 WARN]:        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
[21:38:04 WARN]:        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
[21:38:04 WARN]:        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
[21:38:04 WARN]:        at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
[21:38:04 WARN]:        at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
[21:38:04 WARN]:        at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953)
[21:38:04 WARN]:        at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
[21:38:04 WARN]:        ... 11 more
[21:38:04 WARN]: Caused by: java.net.UnknownHostException: null
[21:38:04 WARN]:        at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
[21:38:04 WARN]:        at java.net.InetAddress$2.lookupAllHostAddr(Unknown Source)
[21:38:04 WARN]:        at java.net.InetAddress.getAddressesFromNameService(Unknown Source)
[21:38:04 WARN]:        at java.net.InetAddress.getAllByName0(Unknown Source)
[21:38:04 WARN]:        at java.net.InetAddress.getAllByName(Unknown Source)
[21:38:04 WARN]:        at java.net.InetAddress.getAllByName(Unknown Source)
[21:38:04 WARN]:        at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
[21:38:04 WARN]:        at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
[21:38:04 WARN]:        ... 14 more