There's a wonderful tool /regen, it works fine for most cases. But in case of villages it looks funny:
https://www.dropbox.com/sh/n8w464g95pdpsv2/AACKvAjY8scyr5ZvVzE47Wbfa?dl=0
Is there a way to fix that?

EssentialsX version (/essentials):
2.0.1-B530

Server software (/version):
git-Spigot-7754231-94b0980 (MC: 1.12.2)

EssentialsX config (if applicable):
N/A

As far as I can tell, this is not an EssentialsX command. To me it looks like WorldEdit, but there may be other plugins that provide that command.

you're right - it's WE tool, sorry for bothering. closed.
thank you