Error: Cannot set headers after they are sent to the client

[sentry]

Sentry Issue: WEBSITE-54

Error: Cannot set headers after they are sent to the client
  File "node:internal/errors", line 372, in new NodeError
  File "node:_http_outgoing", line 576, in ServerResponse.setHeader
  File "/app/node_modules/express/lib/response.js", line 776, in ServerResponse.header
    this.setHeader(field, value);
  File "/app/node_modules/express/lib/response.js", line 170, in ServerResponse.send
    this.set('Content-Type', setCharset(type, 'utf-8'));
  File "/app/node_modules/express/lib/response.js", line 1013, in done
    self.send(str);
...
(5 additional frame(s) were not displayed)