error with 1.21 paper

[thatonelinuxguy]

    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
    at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.jar:1.21-109-5a5035b]
    at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.jar:1.21-109-5a5035b]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
    at ExploitFixer.jar/dev._2lstudios.exploitfixer.utils.PluginDownloader.enablePlugin(PluginDownloader.java:32) ~[ExploitFixer.jar:?]
    at ExploitFixer.jar/dev._2lstudios.exploitfixer.ExploitFixer.downloadHamsterAPI(ExploitFixer.java:74) ~[ExploitFixer.jar:?]
    at ExploitFixer.jar/dev._2lstudios.exploitfixer.ExploitFixer.onEnable(ExploitFixer.java:47) ~[ExploitFixer.jar:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
    at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.jar:1.21-109-5a5035b]
    at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.jar:1.21-109-5a5035b]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
    at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:640) ~[paper-1.21.jar:1.21-109-5a5035b]
    at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:589) ~[paper-1.21.jar:1.21-109-5a5035b]
    at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:753) ~[paper-1.21.jar:1.21-109-5a5035b]
    at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:515) ~[paper-1.21.jar:1.21-109-5a5035b]
    at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:329) ~[paper-1.21.jar:1.21-109-5a5035b]
    at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1214) ~[paper-1.21.jar:1.21-109-5a5035b]
    at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.jar:1.21-109-5a5035b]
    at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

[03:55:50 INFO]: [HamsterAPI] Disabling HamsterAPI v0.2.3
[03:55:50 INFO]: [ExploitFixer] Downloaded HamsterAPI!
[03:55:50 INFO]: [ExploitFixer] File 'plugins/ExploitFixer/config.yml' has been created!
[03:55:50 ERROR]: Error occurred while enabling ExploitFixer v2.2.8 (Is it up to date?)
java.lang.ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3
at ExploitFixer.jar/dev._2lstudios.exploitfixer.modules.CreativeItemsFixModule.(CreativeItemsFixModule.java:37) ~[ExploitFixer.jar:?]
at ExploitFixer.jar/dev._2lstudios.exploitfixer.managers.ModuleManager.(ModuleManager.java:41) ~[ExploitFixer.jar:?]
at ExploitFixer.jar/dev._2lstudios.exploitfixer.ExploitFixer.onEnable(ExploitFixer.java:61) ~[ExploitFixer.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[paper-1.21.jar:1.21-109-5a5035b]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.jar:1.21-109-5a5035b]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[paper-api-1.21-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:640) ~[paper-1.21.jar:1.21-109-5a5035b]
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:589) ~[paper-1.21.jar:1.21-109-5a5035b]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:753) ~[paper-1.21.jar:1.21-109-5a5035b]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:515) ~[paper-1.21.jar:1.21-109-5a5035b]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:329) ~[paper-1.21.jar:1.21-109-5a5035b]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1214) ~[paper-1.21.jar:1.21-109-5a5035b]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.jar:1.21-109-5a5035b]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
there is the stack of errors i got
thanks!