Hi, there is the error when I start the plugin on my server and when I do /luckperms sync.

[17:01:41 WARN]: java.util.concurrent.CompletionException: java.lang.IllegalArgumentException: value is (effectively) empty
[17:01:41 WARN]: at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
[17:01:41 WARN]: at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
[17:01:41 WARN]: at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1643)
[17:01:41 WARN]: at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632)
[17:01:41 WARN]: at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
[17:01:41 WARN]: at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
[17:01:41 WARN]: at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
[17:01:41 WARN]: at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)
[17:01:41 WARN]: Caused by: java.lang.IllegalArgumentException: value is (effectively) empty
[17:01:41 WARN]: at me.lucko.luckperms.common.context.contextset.AbstractContextSet.sanitizeValue(AbstractContextSet.java:120)
[17:01:41 WARN]: at me.lucko.luckperms.common.context.contextset.ImmutableContextSetImpl$BuilderImpl.add(ImmutableContextSetImpl.java:235)
[17:01:41 WARN]: at me.lucko.luckperms.common.context.contextset.ImmutableContextSetImpl$BuilderImpl.add(ImmutableContextSetImpl.java:211)
[17:01:41 WARN]: at me.lucko.luckperms.common.node.AbstractNodeBuilder.withContext(AbstractNodeBuilder.java:120)
[17:01:41 WARN]: at me.lucko.luckperms.common.storage.implementation.sql.SqlNode.toNode(SqlNode.java:112)
[17:01:41 WARN]: at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
[17:01:41 WARN]: at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384)
[17:01:41 WARN]: at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
[17:01:41 WARN]: at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
[17:01:41 WARN]: at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
[17:01:41 WARN]: at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
[17:01:41 WARN]: at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
[17:01:41 WARN]: at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485)
[17:01:41 WARN]: at me.lucko.luckperms.common.model.NodeMap.mergeContent(NodeMap.java:404)
[17:01:41 WARN]: at me.lucko.luckperms.common.model.NodeMap.setContent(NodeMap.java:394)
[17:01:41 WARN]: at me.lucko.luckperms.common.model.PermissionHolder.setNodes(PermissionHolder.java:244)
[17:01:41 WARN]: at me.lucko.luckperms.common.storage.implementation.sql.SqlStorage.loadAllGroups(SqlStorage.java:450)
[17:01:41 WARN]: at me.lucko.luckperms.common.storage.Storage.lambda$loadAllGroups$10(Storage.java:195)
[17:01:41 WARN]: at me.lucko.luckperms.common.storage.Storage.lambda$makeFuture$1(Storage.java:99)
[17:01:41 WARN]: at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640)
[17:01:41 WARN]: ... 5 more