Exception in rendering!

Message: Cannot read property 'id' of null

TypeError: Cannot read property 'id' of null
    at <anonymous>:64583:84
    at <anonymous>:64588:26
    at <anonymous>:64604:20
    at Array.map (<anonymous>)
    at SearchSidebar.render (<anonymous>:64419:35)
    at ReactCompositeComponentWrapper._renderValidatedComponentWithoutOwnerOrContext (<anonymous>:128343:30)
    at ReactCompositeComponentWrapper._renderValidatedComponent (<anonymous>:128366:32)
    at ReactCompositeComponentWrapper.performInitialMount (<anonymous>:127906:30)
    at ReactCompositeComponentWrapper.mountComponent (<anonymous>:127802:21)
    at Object.mountComponent (<anonymous>:11065:35)