15:36:06 [SEVERE] Task BungeeTask(sched=net.md_5.bungee.scheduler.BungeeScheduler@13d73f29, id=13, owner=me.lucko.luckperms.bungee.LPBungeePlugin@7975d1d8, task=me.lucko.luckperms.common.utils.BufferedRequest$Processor@57d9ebbe, delay=0, period=0, running=true) encountered an exception
java.util.concurrent.CompletionException: java.lang.NullPointerException
    at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
    at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
    at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1592)
    at net.md_5.bungee.scheduler.BungeeTask.run(BungeeTask.java:63)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
    at me.lucko.luckperms.common.storage.backing.sqlprovider.MySQLProvider.getConnection(MySQLProvider.java:100)
    at me.lucko.luckperms.common.storage.backing.SQLBacking.loadAllGroups(SQLBacking.java:600)
    at me.lucko.luckperms.common.storage.AbstractStorage.lambda$loadAllGroups$6(AbstractStorage.java:150)
    at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
    ... 4 more