error BetonQuest

> [19:22:45 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'j' in plugin BetonQuest v2.0-preview.27
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[server.jar:git-Spigot-da42974-8f47214]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[server.jar:git-Spigot-da42974-8f47214]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:651) ~[server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1386) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1221) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-da42974-8f47214]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_212]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [server.jar:git-Spigot-da42974-8f47214]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [server.jar:git-Spigot-da42974-8f47214]
at java.lang.Thread.run(Thread.java:813) [?:1.8.0_212]
Caused by: java.lang.NullPointerException
at pl.betoncraft.betonquest.utils.Utils.format(Utils.java:464) ~[?:?]
at pl.betoncraft.betonquest.utils.Utils.format(Utils.java:476) ~[?:?]
at pl.betoncraft.betonquest.config.ConfigPackage.getFormattedString(ConfigPackage.java:271) ~[?:?]
at pl.betoncraft.betonquest.Journal.generateTexts(Journal.java:212) ~[?:?]
at pl.betoncraft.betonquest.Journal.addToInv(Journal.java:340) ~[?:?]
at pl.betoncraft.betonquest.commands.JournalCommand.onCommand(JournalCommand.java:49) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[server.jar:git-Spigot-da42974-8f47214]
... 15 more