Exception in rendering!

Message: Cannot read property 'tags' of undefined

TypeError: Cannot read property 'tags' of undefined
    at e.get (<anonymous>:79:123402)
    at e.computeValue (<anonymous>:60:17966)
    at e.get (<anonymous>:60:16967)
    at e.<anonymous> (<anonymous>:46:21296)
    at e.get (<anonymous>:46:5558)
    at t.value (<anonymous>:79:118966)
    at _renderValidatedComponentWithoutOwnerOrContext (<anonymous>:99:65942)
    at _renderValidatedComponent (<anonymous>:99:66069)
    at performInitialMount (<anonymous>:99:61910)
    at mountComponent (<anonymous>:99:60956)