fix webserver

routes/include/main.js

@@ -12,7 +12,7 @@ export default (langName, lang) => new Elysia()
     const data = Meteostanica.getData()
 
     set.headers['content-type'] = 'text/html; charset=utf8'
-    return eta.render(`${langName}/index`, { data })
+    return eta.render(`${langName}/index`, { lang, data })
   })
   .get('/settings', ({ set }) => {
     set.headers['content-type'] = 'text/html; charset=utf8'