[17:07:53 ERROR]: Error occurred while enabling RealSkywars v1.2 (Is it up to date?)
java.lang.ExceptionInInitializerError: null
        at RealSkywarsPlugin-1.2.jar/me.clip.placeholderapi.expansion.PlaceholderExpansion.getPlaceholderAPI(PlaceholderExpansion.java:158) ~[RealSkywarsPlugin-1.2.jar:?]
        at RealSkywarsPlugin-1.2.jar/me.clip.placeholderapi.expansion.PlaceholderExpansion.register(PlaceholderExpansion.java:138) ~[RealSkywarsPlugin-1.2.jar:?]
        at RealSkywarsPlugin-1.2.jar/joserodpt.realskywars.plugin.RealSkywarsPlugin.onEnable(RealSkywarsPlugin.java:259) ~[RealSkywarsPlugin-1.2.jar:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-mojangapi-1.21.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:641) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:590) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:753) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:515) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:329) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1214) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:329) ~[paper-1.21.1.jar:1.21.1-132-b48403b]
        at java.base/java.lang.Thread.run(Thread.java:1575) ~[?:?]
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3
        at RealSkywarsPlugin-1.2.jar/me.clip.placeholderapi.PlaceholderAPIPlugin.<clinit>(PlaceholderAPIPlugin.java:59) ~[RealSkywarsPlugin-1.2.jar:?]
        ... 15 more