1.21.1 Issues

[Unipotatoo]

I was recently on 1.20.6, and everything seemed to be working fine. Updated to 1.21.1 today and the plugin has turned red. Checked the spigot page, it saids only 1.21 not 1.21.1 so that might be the issue. Not 100% sure but here is the console response:

[15:50:52 INFO]: [custom-ore-generator] Enabling custom-ore-generator v2024.06.16 [15:50:52 ERROR]: Error occurred while enabling custom-ore-generator v2024.06.16 (Is it up to date?) java.lang.IllegalStateException: No NMSReplacer found for version '1.21.1', this is a bug! at custom-ore-generator-2024.06.16.jar/de.derfrzocker.custom.ore.generator.CustomOreGenerator.initWorldHandler(CustomOreGenerator.java:337) ~[custom-ore-generator-2024.06.16.jar:?] at custom-ore-generator-2024.06.16.jar/de.derfrzocker.custom.ore.generator.CustomOreGenerator.onEnable(CustomOreGenerator.java:200) ~[custom-ore-generator-2024.06.16.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:1.21.1-52-e08e667] at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[paper-1.21.1.jar:1.21.1-52-e08e667] 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:640) ~[paper-1.21.1.jar:1.21.1-52-e08e667] at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:589) ~[paper-1.21.1.jar:1.21.1-52-e08e667] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:293) ~[paper-1.21.1.jar:1.21.1-52-e08e667] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1215) ~[paper-1.21.1.jar:1.21.1-52-e08e667] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.1.jar:1.21.1-52-e08e667] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?] [15:50:52 INFO]: [custom-ore-generator] Disabling custom-ore-generator v2024.06.16