The game crashes when it tries loading the problem chunk.
And I can't load this save any more.
I asked my players how did they triggered this, but they don't know. So I don't know what happened either.
English is not my native language, so sorry for any spelling mistakes.
Please make sure that you're using either official Linux launcher (the java-based one or the staging ones available as arch and deb packages (there may be a newer non-staging link, but I don't use Linux so I'm not sure how to find it)). Please also note that launching a world from a newer version in an older version may corrupt the world, so avoid doing that.
In any case, this issue looks like MC-109348. I can walk you through the steps for repairing your world, if you need help (make a full backup first).