Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting http://91.221.70.94:3000/MOS/OpenBoard/commit/cb7a0a3807c894f43ce93ac8e68279f8df30be24?style=split&whitespace=ignore-change
You should set ROOT_URL correctly, otherwise the web may not work correctly.
/* this is performed because when removing delegated from scene while it contains flash content, segfault happens because of QGraphicsScene::removeItem() */