Make sure you're doing the following

• You're using the latest build for your server version
• This isn't an issue caused by another plugin
• You've checked for duplicate issues
• You didn't use /reload

Describe the question
Please have this solved, thanks! #1875

I noticed that the Owner neither any Contributors did not respond that issue, if this issue make you confused I'm sorry, I really need to solve this issue. :(

same issue

I noticed that the Owner neither any Contributors did not respond that issue, if this issue make you confused I'm sorry, I really need to solve this issue. :(

did you solve it?

Same issue here, the plugin is currently not usable

I noticed that the Owner neither any Contributors did not respond that issue, if this issue make you confused I'm sorry, I really need to solve this issue. :(

did you solve it?

No

ot respond that issue, if this issue make you confused I'm sorry, I really need to solve this issue. :(

Possibly found a solution:
If you use Gradle then don't use shadow or implementation for ProtocolLib.
Only use: compileOnly("com.comphenix.protocol", "ProtocolLib", "4.8.0");