An error in the new statistic chart code causes some charts to fail when you use any language other than US, British, or Australian English.
My mistake – I used translated variables when I should have used fixed variables (constants). In English languages, they were both the same word, but in all others, the translation caused the wrong word, so no data found!
This is now fixed and will be included in the next release (3.3.7). I aim to release that version in January.