Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/d6df46fe63b9fb6af3f98807fcc1257f026f2170/resources/etc/Tutorial You should set ROOT_URL correctly, otherwise the web may not work correctly.
новые иконки в OpenBoard
 
 
 
 
 
 
OpenBoard/resources/etc/Tutorial
bmagnin 0819b6f307 Tutorial page upgrade 13 years ago
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tutorial_en Tutorial page upgrade 13 years ago
tutorial_fr Tutorial page upgrade 13 years ago