Minecraft World Chain Command Blocks?

Na
- in Worlds
2

In my world, which was created in 1.11, but was played most of the time on 1.16, I can't use chain command blocks. Not even without plugins, in single player. Does anyone know what? Use PaperSpigot 1.16.5

co

You have to activate the command blocks in the server.properties first.

enable-command-block = true

Na

Everything is done. Also works in other worlds