Cannot read property 'id' of null

TypeError: Cannot read property 'id' of null

at He.onconfirm (app-service.js:7004:7462)

at He.E.d.<computed>.<computed>.d.addListener.capture (WASubContext.js:2:1810893)

at r.safeCallback (WASubContext.js:2:1615399)

at r.call (WASubContext.js:2:1615292)

at o (WASubContext.js:2:1618716)

at at (WASubContext.js:2:1619452)

at h (WASubContext.js:2:1618194)

at Function.c.dispatchEvent (WASubContext.js:2:1619300)

at Function.c.triggerEvent (WASubContext.js:2:1619554)

at n.y.triggerEvent (WASubContext.js:2:1641378)