So today randomly when people log out I get this error.
Code:
[2017-09-06 00:25:57] java.sql.SQLException: null, message from server: "Host '104.254.247.63' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"
[2017-09-06 00:25:57] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
[2017-09-06 00:25:57] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
[2017-09-06 00:25:57] at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1096)
[2017-09-06 00:25:57] at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2048)
[2017-09-06 00:25:57] at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:723)
[2017-09-06 00:25:57] at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
[2017-09-06 00:25:57] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[2017-09-06 00:25:57] at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
[2017-09-06 00:25:57] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
[2017-09-06 00:25:57] at java.lang.reflect.Constructor.newInstance(Unknown Source)
[2017-09-06 00:25:57] at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
[2017-09-06 00:25:57] at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
[2017-09-06 00:25:57] at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
[2017-09-06 00:25:57] at java.sql.DriverManager.getConnection(Unknown Source)
[2017-09-06 00:25:57] at java.sql.DriverManager.getConnection(Unknown Source)
[2017-09-06 00:25:57] at com.junebug.HighscoresHandler.run(HighscoresHandler.java:163)
[2017-09-06 00:25:57] at java.lang.Thread.run(Unknown Source)
I've had high-scores working so nothing I changed caused this. Please help, or any idea.