1. create new survey
2. create 1 question group and 1 question (needed to activate survey)
3. click "Activate survey" from overview tab, click "Save & activate survey"
4. click "Statistics" settings tab on the left
5. click "Presentation" settings tab on the left
6. turn on "Public statistics" and "Show graphs in public statistics"
7. click "Save" on the top right
8. Error appears

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