Lepton-x has font file on top of css. When it didn't connected to internet all css throw error. I was remember, I have fixed the issue. What is your lepton-x version? olsa can you share your network section of chrome dev tools on your browser. We may see the requested file
Could you share your package.json and app.module.ts (removed from business related sensitive things).
row 17 is not placed in there. it seems erorr. import { ThemeLeptonModule } from '';
