problems with production nuxt3

I have an issue with my Nuxt 3 application. When I build my application using npm run build and start it with node .output/server/index.mjs, everything works fine from the local IP. However, when I access the site using my domain name, the functionality is very poor: middlewares don't work, I get errors with Nuxt.js, some variables are null, and there's an "Hydration completed but contains mismatches" error. I can't seem to understand this error. I do the exact same thing with other frameworks and it works perfectly, whether using the local IP or the domain name.