- Fixed an error when using the development version of PlaceholderAPI.
- Fixed an issue where surrounding players might be kicked out and an error would be thrown when placing a sign.
- Fixed the issue that the sign replacement may be affected by other players.
- Support checking resolved attribute of the book to determine whether the content of the book is Json or plain text.
- Fixed `/psr capture list` command error on 1.8-1.11.2 servers.