Odoo : Main JS file is not loading on mobile device?

I host my odoo on server and modifying theme using html editor . but there occurred an error . Website navigation is not working on mobile but in browsers mobile it works fine.Because its not working on mobile , For this we use developer tool of andriod to find out the problem . On mobile main js file of odoo is not working we open that file in browser. Which was empty . Name of this file "website.assets_frontend.js" it compile every time when we reload page. Location of this file "8069/web/content/4796-3ea3e05/website.assets_frontend.js" "4796-3ea3e05" this folder generate by odoo with new name while reload page.