[ERROR] Conversion failed, you will have to do it manually (Nukkit server + anvil2leveldb command)

[vlssu]

NOTICE: Bukkit/Spigot versions 1.7.10 to 1.12.2 are considered legacy and will receive limited support. Please consider upgrading to 1.13 for future support. Plugins exist for 1.13+ that bring back old behaviors found in 1.8

Bug report for FastAsyncWorldEdit < 1.12.2

Debug paste link:

Description of the problem:

How to replicate:

Checklist:

• [] I read the information at the top of the issue stating that versions up to 1.12 are classified as legacy and receive limited to none support. Given that, I understand that my issue won't receive an answer or fix anytime soon since my version is very old and I should update my server to a newer version of minecraft.
• [] I made sure that I'm using FAWE on 1.12.2 or lower
• [] I included a /fawe debugpaste link
• [] I made sure there aren't duplicates of this report (Use Search)
• [] I made sure I am using an up-to-date version of FAWE < 1.12.2
• [] I made sure the bug/error is not caused by any other plugin

[NotMyFault]

Your ticket has been closed because it falls into one of the following categories:

• Your issue has been fixed in a newer version of FastAsyncWorldEdit for versions 1.8 - 1.12.2, get the latest build here matching the platform you need.

• Your issue targets minecraft version 1.13 or higher. This is the wrong repository then. Move to this repository and open a bug report here. BUT BEWARE: You should consider updating to 1.15.2, using the latest Fawe build for 1.15.2 (Build 255 when writing this, get it here) and reproducing the issue in a clean environment (fresh setup Spigot or Paper server).

• Your issue has been fixed in a build of FAWE for 1.15 or an issue exists on our new repository.

• You either didn't fill out the template or deleted it.

If none of the bullet points suits, head to the second one.