URGENT! Getting "Runtime exited without providing a reason" on some API endpoints after deploying on Vercel, they work on local.

here
code 4/0AfJohXnOtG5xJq42cBkNH-oEw5F4gXjMY6d5sh6O1uMguaeQg2b8aoXEKnbfV00lItXp1A
grant_type=authorization_code&code=4%2F0AfJohXnOtG5xJq42cBkNH-oEw5F4gXjMY6d5sh6O1uMguaeQg2b8aoXEKnbfV00lItXp1A&redirect_uri=https%3A%2F%2Fusebrainbase.xyz%2Fapi%2Fauth%2Fapp%2Fgmail%2Fcallback&client_id=501359362222-m59h8be4skfl7l460v344fbngf3s70j2.apps.googleusercontent.com&client_secret=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
here2
here3
response {
data: { access_token: 'access_token', refresh_token: 'refresh_token' }
}
Access Token { accessToken: 'access_token', refreshToken: 'refresh_token' }
Connecting to database...
(node:15) [MONGODB DRIVER] Warning: useNewUrlParser is a deprecated option: useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version
(Use node --trace-warnings ... to show where the warning was created)
(node:15) [MONGODB DRIVER] Warning: useUnifiedTopology is a deprecated option: useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version
Error: Runtime exited without providing a reason
Runtime.ExitError