Your ROOT_URL in app.ini is https://scm.trinitydesktop.org/gitea/ but you are visiting https://scm.trinitydesktop.net/gitea/TDE/tqt3/src/commit/0881ed5059c46ce73e8241e6260b82b92f6d0e55/doc/html/qs-laygrid.png
You should set ROOT_URL correctly, otherwise the web may not work correctly.