API routes not work after deploy to vercel

[ubay1]

https://github.com/ubay1/asik-sveltekit/blob/main/src/routes/api/captcha/%2Bserver.ts
this is api routes /api/captcha

https://github.com/ubay1/asik-sveltekit/blob/main/src/routes/(auth)/login/%2Bpage%40(auth).svelte
this is hit api routes /api/captcha

error from vercel function log

when developing API routes work. but after deployment to vercel API routes do not work.