quimico's setlist.fm

How can I change this? I tried, but it does not work. Same hold true if a typo in a date happened... No change possible :(

https://www.setlist.fm/venue/au-fest-open-air-frankfurt-germany-3d485f3.html
Please use exact location or venue following the guidelines at
https://www.setlist.fm/guidelines#festivalsHl

please use exact location or venue for AU-Fest Open-Air festival you attended
https://www.setlist.fm/guidelines#festivalsoccurrences