pobably a missing return statement in route handler

[LReg]

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client
at new NodeError (node:internal/errors:405:5)
at ServerResponse.setHeader (node:_http_outgoing:648:11)
at ServerResponse.header (/opt/app/node_modules/express/lib/response.js:794:10)
at ServerResponse.send (/opt/app/node_modules/express/lib/response.js:174:12)
at file:///opt/app/src/routers/sessionRouter.js:262:9
at Layer.handle [as handle_request] (/opt/app/node_modules/express/lib/router/layer.js:95:5)
at next (/opt/app/node_modules/express/lib/router/route.js:149:13)
at Route.dispatch (/opt/app/node_modules/express/lib/router/route.js:119:3)
at Layer.handle [as handle_request] (/opt/app/node_modules/express/lib/router/layer.js:95:5)
at /opt/app/node_modules/express/lib/router/index.js:284:15