Small Nuxt3 app for demonstrating multiple useFetch causing "nuxt instance unavailable" error.
Simply run the app with npm run dev, index.vue is using the useCategories.js composable which in turn calls the useWhitelabels.js composable, both of these make a request to server/api using useFetch which produces the error outlined above.
To get round this for now I have replaced second useFetch call within useWhitelabel.js with $fetch instead, if you make these changes you can see the index page will then begin to work as expected.