Your ROOT_URL in app.ini is https://scm.trinitydesktop.org/gitea/ but you are visiting https://scm.trinitydesktop.net/gitea/TDE/tde-i18n/src/commit/41b631340cdf46693027eb2a6332bb7ffbefc840/tde-i18n-de/docs/tdeedu/kalzium/screenshot4.png
You should set ROOT_URL correctly, otherwise the web may not work correctly.