[20:05:53] [WorldGuard Region I/O/WARN]: [WorldGuard] Failed to save the region data for 'Survival' during a periodical save
com.sk89q.worldguard.protection.managers.storage.StorageException: Failed to save the region data to the database
	at com.sk89q.worldguard.protection.managers.storage.sql.SQLRegionDatabase.saveChanges(SQLRegionDatabase.java:270) ~[worldguard-bukkit-7.0.1-rc2-dist.jar:7.0.1-rc2]
	at com.sk89q.worldguard.protection.managers.RegionManager.saveChanges(RegionManager.java:134) ~[worldguard-bukkit-7.0.1-rc2-dist.jar:7.0.1-rc2]
	at com.sk89q.worldguard.protection.managers.RegionContainerImpl$BackgroundSaver.run(RegionContainerImpl.java:245) [worldguard-bukkit-7.0.1-rc2-dist.jar:7.0.1-rc2]
	at java.util.TimerThread.mainLoop(Unknown Source) [?:1.8.0_221]
	at java.util.TimerThread.run(Unknown Source) [?:1.8.0_221]
Caused by: java.sql.BatchUpdateException: Cannot add or update a child row: a foreign key constraint fails (`deathcraft_db`.`wg_region_cuboid`, CONSTRAINT `fk_wg_region_cuboid_region` FOREIGN KEY (`region_id`, `world_id`) REFERENCES `wg_region` (`id`, `world_id`) ON DELETE CASCADE ON UPDATE CASCADE)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_221]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
	at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_221]
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.Util.getInstance(Util.java:408) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.SQLError.createBatchUpdateException(SQLError.java:1163) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1823) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1307) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:970) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.sk89q.worldguard.protection.managers.storage.sql.RegionInserter.insertCuboids(RegionInserter.java:125) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.RegionInserter.apply(RegionInserter.java:184) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.DataUpdater.executeSave(DataUpdater.java:129) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.DataUpdater.saveChanges(DataUpdater.java:73) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.SQLRegionDatabase.saveChanges(SQLRegionDatabase.java:268) ~[?:?]
	... 4 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`deathcraft_db`.`wg_region_cuboid`, CONSTRAINT `fk_wg_region_cuboid_region` FOREIGN KEY (`region_id`, `world_id`) REFERENCES `wg_region` (`id`, `world_id`) ON DELETE CASCADE ON UPDATE CASCADE)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_221]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_221]
	at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_221]
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.Util.getInstance(Util.java:408) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2495) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2124) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1801) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1307) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:970) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-1ec1b05]
	at com.sk89q.worldguard.protection.managers.storage.sql.RegionInserter.insertCuboids(RegionInserter.java:125) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.RegionInserter.apply(RegionInserter.java:184) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.DataUpdater.executeSave(DataUpdater.java:129) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.DataUpdater.saveChanges(DataUpdater.java:73) ~[?:?]
	at com.sk89q.worldguard.protection.managers.storage.sql.SQLRegionDatabase.saveChanges(SQLRegionDatabase.java:268) ~[?:?]
	... 4 more