Kicked when renaming head

[MithrandirCraft]

Describe the bug
Attempting to rename an offline-mode playerhead kicks you from the server

To Reproduce
Steps to reproduce the behavior, for example:

1. /playerheads spawn oierngio
2. Place an anvil
3. Attempt to rename the head
4. Get kicked from the server

Expected behavior
That shouldn't happen, or should atleast be prevented from happening.

Observed behavior
You get kicked

Screenshots

Plugins

• Plugin version 5.2.16-SNAPSHOT

Servers (please complete the following information):

• OS: Ubuntu
• Server type: Paper
• Server version: 1.17.1

Additional context
None.