This template is created for the "Khulna University Studies (KU Studies)" journal. It's the camera-ready version. This needs to be compiled in the "LuaLatex" environment. In OVERLEAF, to set the "LuaLatex", press the "Menu" button on the top-left and set the option "compiler" to "LuaLatex". This is due to the dependency of Garamond font.