[10:56:54 ERROR]: [NetworkCore] An error occurred while executing task PURGE_SERVER_LOGS of plugin NetworkCore
net.rieksen.networkcore.core.dao.DAOException: Failed to delete logs before
        at net.rieksen.networkcore.core.dao.mysql.MySQLServerDAO.deleteLogsBefore(MySQLServerDAO.java:183) ~[?:?]
        at net.rieksen.networkcore.core.task.PurgeServerLogsTaskExecutor.execute(PurgeServerLogsTaskExecutor.java:24) ~[?:?]
        at net.rieksen.networkcore.core.plugin.NetworkPlugin.runTask(NetworkPlugin.java:277) ~[?:?]
        at net.rieksen.networkcore.spigot.runnable.PluginTaskRunnable.lambda$run$31(PluginTaskRunnable.java:34) ~[?:?]
        at java.util.ArrayList.forEach(ArrayList.java:1249) [?:1.8.0_101]
        at net.rieksen.networkcore.spigot.runnable.PluginTaskRunnable.run(PluginTaskRunnable.java:31) [NetworkCore-2.2.9.jar:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) [spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52) [spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_101]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLTransactionRollbackException: Lock wait timeout exceeded; try restarting transaction
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_101]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_101]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_101]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_101]
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.Util.getInstance(Util.java:408) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:951) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2494) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2079) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2013) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5104) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1998) ~[spigot-1.12.1-R0.1-SNAPSHOT.jar:git-Spigot-5340a52-963b19c]
        at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61) ~[?:?]
        at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java) ~[?:?]
        at net.rieksen.networkcore.core.dao.mysql.MySQLServerDAO.deleteLogsBefore(MySQLServerDAO.java:180) ~[?:?]
        ... 10 more