Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/7272b49a56c0c61bfb0a215c68347c36c3decd10/resources/library/search/Flash%20Planete.wgs/css
You should set ROOT_URL correctly, otherwise the web may not work correctly.