Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/bb4e0b43f2d5d6c1aa4aef75a3cd24c9c7f779cd/resources/images/virtual.keyboard/41/tab.png
You should set ROOT_URL correctly, otherwise the web may not work correctly.