throw new ERR_HTTP_HEADERS_SENT('set');
^
Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at ServerResponse.setHeader (node:_http_outgoing:652:11)
at ServerResponse.header (/app/node_modules/express/lib/response.js:794:10)
at ServerResponse.send (/app/node_modules/express/lib/response.js:174:12)
at ServerResponse.json (/app/node_modules/express/lib/response.js:278:15)
at returnResponse (/app/services/general.js:25:29)
at getSingleUser (/app/controllers/userController.js:62:9)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
code: 'ERR_HTTP_HEADERS_SENT'
}```