java.lang.ClassNotFoundException

[1kdani]

Describe the bug
Hi! Every time when I start my server, I get this error. Does anyone know, how to fix it?

My server version is: 1.19.3

Error
java.lang.ClassNotFoundException: net.minecraft.server.v1_19_R3.MinecraftServer
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:383)
at java.base/java.lang.Class.forName(Class.java:376)
at com.extendedclip.papi.expansion.server.ServerExpansion.(ServerExpansion.java:63)
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:483)
at PlaceholderAPI-2.11.5.jar//me.clip.placeholderapi.expansion.manager.LocalExpansionManager.createExpansionInstance(LocalExpansionManager.java:453)
at PlaceholderAPI-2.11.5.jar//me.clip.placeholderapi.expansion.manager.LocalExpansionManager.register(LocalExpansionManager.java:173)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
at PlaceholderAPI-2.11.5.jar//me.clip.placeholderapi.expansion.manager.LocalExpansionManager.lambda$registerAll$4(LocalExpansionManager.java:366)
at PlaceholderAPI-2.11.5.jar//me.clip.placeholderapi.util.Futures.lambda$null$0(Futures.java:46)
at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftTask.run(CraftTask.java:101)
at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1131)
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:325)
at java.base/java.lang.Thread.run(Thread.java:833)

My plugins

Version Info
ProtocolLib-5.1.0

[wasn325]

I am not eve sure if this is caused by ProtocolLib
Maybe try it here? https://github.com/PlaceholderAPI/PlaceholderAPI/issues