Selected Travels and the id attribute, but the backend is empty, no data available.

react_devtools_backend.js:6 TypeError: Cannot read property 'map' of undefined
at HeaderRow (header-row.js:26)
at oh (react-dom.production.min.js:153)
at Rj (react-dom.production.min.js:261)
at Qj (react-dom.production.min.js:246)
at Kj (react-dom.production.min.js:246)
at yj (react-dom.production.min.js:239)
at react-dom.production.min.js:123
at exports.unstable_runWithPriority (scheduler.production.min.js:19)
at cg (react-dom.production.min.js:122)
at fg (react-dom.production.min.js:123)

Returned data:
{"data":

}