Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/cae2caecac43395ccf74369ebe4b6613d395fff7/resources/library/applications/Calculatrice.wgt/css
You should set ROOT_URL correctly, otherwise the web may not work correctly.
bmagnin