Exception in rendering!

Message: Cannot read property 'replace' of undefined

TypeError: Cannot read property 'replace' of undefined
    at m (<anonymous>:136:13123)
    at _constructComponentWithoutOwner (<anonymous>:64:3627)
    at _constructComponent (<anonymous>:64:3481)
    at mountComponent (<anonymous>:64:2646)
    at Object.mountComponent (<anonymous>:48:12322)
    at mountChildren (<anonymous>:63:27978)
    at m._createContentMarkup (<anonymous>:62:19095)
    at mountComponent (<anonymous>:62:17689)
    at Object.mountComponent (<anonymous>:48:12322)
    at performInitialMount (<anonymous>:64:4436)
    at mountComponent (<anonymous>:64:3322)