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/3d58bdc013e28bfb47c3670a11aff131f40252ed/resources/library/animations
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Claudio Valerio