after adding the pl.yml file that I wrote myself, everything is replaced with the placecholder.
in config.yml I changed en to pl. am i doing something wrong or plugin prohibits adding my own languages?

If you still have this issue, please reopen. This is likely caused by yml formatting, use an online yml parser to check if the yml is correct

It should work adding your own language. Does the server log say anything is wrong?

It should work adding your own language. Does the server log say anything is wrong?

Caused by: org.yaml.snakeyaml.parser.ParserException: while parsing a block mapping
in 'string', line 2, column 1:
Brew_-times: -Razy
^
expected , but found ''
in 'string', line 97, column 21:
Player_TriedToSay: '&v1 tried to say: &0&v2'

I don't know what to do about it