"Cannot read property 'children' of null" error message when publishing a page

Cannot read property 'children' of null
in t
in r
in StyledComponent(r)
in div
in Unknown
in InjectIntl(Component)
in ShortcutContextComponent
in t
in Apollo(t)
in Connect(Apollo(t))
in t
in div
in t
in div
in Unknown
in StyledComponent()
in Connect(StyledComponent())
in t
in div
in div
in div
in t
in div
in ResizableSplitPanel
in t
in ShortcutContextComponent
in r
in StyledComponent(r)
in MainStage
in Connect(MainStage)
in t
in Connect(t)
in div
in ShortcutsProvider
in Connect(ShortcutsProvider)
in IntlProvider
in t
in r
in App
in Connect(App)
in N
in t
in t
in t
in Connect(t)
in t
in r
in Connect(r)
in t
in withRouter(Connect(r))
in t
in t
in t
in t
in n
in t
in Root