The language of the plug-in does not support Chinese. No matter how I transcode, it cannot display Chinese

When I customize the potion effect in Enhanced Environmental Injuries:
in config.yml , it will become the same again. I'm sure my words are spelled correctly

At the same time, when I customize the health and hunger of players after resurrection, the same situation also occurs: they will become the same again

My server is Paper 1.18.2
The version of the plugin is 3.15.0-e4f17b1
The following is a screenshot of the configuration involved in the above problem

When I try to use Chinese, it will become a pile of garbled code, but when I convert to Unicode, it will only output Unicode encoded text

Here are some screenshots