drizzle + postgres + express + ts, errors

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
    at new NodeError (node:internal/errors:393:5)
    at ServerResponse.setHeader (node:_http_outgoing:644:11)
    at ServerResponse.header (/Users/nicolaichristensen/Dev/js_world/express-caddy/node_modules/.pnpm/[email protected]/node_modules/express/lib/response.js:794:10)
    at ServerResponse.location (/Users/nicolaichristensen/Dev/js_world/express-caddy/node_modules/.pnpm/[email protected]/node_modules/express/lib/response.js:915:15)
    at ServerResponse.redirect (/Users/nicolaichristensen/Dev/js_world/express-caddy/node_modules/.pnpm/[email protected]/node_modules/express/lib/response.js:953:18)
    at file:///Users/nicolaichristensen/Dev/js_world/express-caddy/src/routes/auth.mts:78:19
    at processTicksAndRejections (node:internal/process/task_queues:95:5) {
  code: 'ERR_HTTP_HEADERS_SENT'
}