server loads up fine but cant log on client side aslong as the plugin is installed...

[newt0000]

• This issue is not solved in a development build

Describe the bug
installed as a dependency for several plugins i use and have paid for and the server starts up just fine no errors and no bugs but when me or any other player try to log on to the server it fails to connect with the error line "lost connection: Internal Exception: io.netty.handler.codec.EncoderException: Failed to encode packet 'clientbound/minecraft:set_objective'"
cannot find a reason or a solution to this issue and its causing a lot of issues being a main dependency for very integral plugins

To Reproduce
Steps to reproduce the behavior:

1. Go to 'servers'
2. Click on 'server'
3. See error

Expected behavior
successful login

Screenshots

Version Info
Provide your ProtocolLib install info with /protocol dump through pastebin.
dump

Additional context
server hardware: dell power edge r630
server software: ubuntu server 20.04.1
frontend: casaOS
mc software: crafty controller (latest)
mc version: paper 1.21.1
tunnel service: palyit.gg

tested on both local ip connection and tunnel ip both fail with same error

[Ingrim4]

This is a well know issue with SimpleScore either remove the plugin or report it to the SimpleScore authors.