Crash: NullPointerException: Exception in server tick loop Persistency$Hooks.afterFinishMinecraftLoading

[Krutoy242]

One of E2E-E players reported that playing on server with Void-Linux Incus Container, he encountered a crash:

java.lang.NullPointerException: Exception in server tick loop
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770)
    at com.google.common.io.Files.move(Files.java:475)
    at zone.rong.persistency.Persistency$Hooks.afterFinishMinecraftLoading(Persistency.java:146)
    at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:109)
    at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:338)
    at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:219)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:1802)
    at java.lang.Thread.run(Thread.java:750)

crash.txt
latest.log

Why this could happen? Is there easy temporary solutions if he wants to play right now?