Your ROOT_URL in app.ini is https://gitea.jennalody.de/ but you are visiting https://gitea.jenslody.de/jenna/gnome-shell-extension-panel-osd/blame/commit/e121669e26faeace2c740380b2f2b2908e324837/config/.gitignore
You should set ROOT_URL correctly, otherwise the web may not work correctly.