Exception in rendering!

Message: Cannot read property 'children' of undefined

TypeError: Cannot read property 'children' of undefined
    at t.parseHtml (<eval>:56:214028)
    at W (<eval>:68:142962)
    at o (<eval>:138:11030)
    at _e (<eval>:138:12048)
    at e.t.render (<eval>:138:14564)
    at e.t.read (<eval>:138:14140)
    at Ee.renderToString (<eval>:138:19346)
    at f.a.register.App (<eval>:217:1235446)
    at t.default (<eval>:68:670005)
    at t.default (<eval>:138:25286)