Describe the bug
When I using protocollib 4.7 and hit to entity i get some console log errors.
Console errors:
https://pastebin.com/kSqKYMfa

This problem coming with protocollib 4.7. No error with 4.6

To Reproduce
Steps to reproduce the behavior:

1. install protocollib 4.7
2. hit to entity

Expected behavior
I don't want get error when I hit to entity

Version Info
https://pastebin.com/p1xixNfX

Additional context
Add any other context about the problem here.

Do things work normally aside from the error?