I'm trying to set up Sveltekit, Supabase and Vercel.
It works correctly on a local environment (SvelteKit and Supabase), but when I deploy it to Vercel there is a problem with Supabase - "Error: supabaseUrl is required" (I post a screenshot below).
If I don't use Supabase, there are no problems with deploying to Vercel.
Please someone if you have encountered a similar one or have a suggestion to share.

[![enter image description here](https://i.stack.imgur.com/liJr0.png)](https://i.stack.imgur.com/liJr0.png)