Console: An error occurred while saving data
Hello, what can cause this error? The latest version of Mythic Mobs + Mythic Crucible + the latest version of ViaVersion. Paper 1.19.3
[12:11:45 INFO]: [MythicMobs] ✗An error occurred while saving data
[12:11:45 WARN]: java.lang.NullPointerException: Cannot invoke "io.lumine.mythic.core.skills.variables.VariableRegistry.clean()" because the return value of "io.lumine.mythic.bukkit.utils.serialization.WrappedJsonFile.get()" is null
[12:11:45 WARN]: at MythicMobs-5.3.1.jar//io.lumine.mythic.core.skills.variables.VariableManager.save(VariableManager.java:52)
[12:11:45 WARN]: at MythicMobs-5.3.1.jar//io.lumine.mythic.core.config.ConfigExecutor.lambda$save$0(ConfigExecutor.java:169)
[12:11:45 WARN]: at MythicMobs-5.3.1.jar//io.lumine.mythic.bukkit.utils.Delegates$RunnableToSupplier.get(Delegates.java:121)
[12:11:45 WARN]: at MythicMobs-5.3.1.jar//io.lumine.mythic.bukkit.utils.promise.LuminePromise$SupplyRunnable.run(LuminePromise.java:654)
[12:11:45 WARN]: at MythicMobs-5.3.1.jar//io.lumine.mythic.bukkit.utils.tasks.LumineExecutors$SchedulerWrappedRunnable.run(LumineExecutors.java:70)
[12:11:45 WARN]: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[12:11:45 WARN]: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[12:11:45 WARN]: at java.base/java.lang.Thread.run(Thread.java:833)