Describe the bug
WrappedBlockData.createData(Material.SIGN_POST) I use this to create a BlockData
and here are the errors:

Caused by: java.lang.NullPointerException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_241]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_241]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_241]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_241]
at com.comphenix.protocol.reflect.accessors.DefaultMethodAccessor.invoke(DefaultMethodAccessor.java:16) ~[?:?]
at com.comphenix.protocol.wrappers.WrappedBlockData$OldBlockData.createOldData(WrappedBlockData.java:238) ~[?:?]
at com.comphenix.protocol.wrappers.WrappedBlockData$OldBlockData.access$400(WrappedBlockData.java:164) ~[?:?]
at com.comphenix.protocol.wrappers.WrappedBlockData.createData(WrappedBlockData.java:300) ~[?:?]

Version Info
ProtocolLib 4.4 & ProtocolLib 4.5