Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/blame/commit/6d30e5dee79979de08600cd6aca06cf90bdfb3f3/third-party/Bounce2/docs/index.html You should set ROOT_URL correctly, otherwise the web may not work correctly.
MicroDexed/third-party/Bounce2/docs/index.html

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<meta http-equiv="refresh" content="0; URL='files/index.html'" />