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/991e07aceb89f5a9353c78ee3eee4117859fa534/tde-i18n-de/docs/tdeedu/klettres/klettres3.png
You should set ROOT_URL correctly, otherwise the web may not work correctly.