Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting http://91.221.70.94:3000/MOS/OpenBoard/src/commit/034800538dfb019018de6030ad132d33a8522429/resources/macx/Save%20PDF%20to%20OpenBoard.workflow
You should set ROOT_URL correctly, otherwise the web may not work correctly.