Exception in rendering!

Message: Symbol is not defined

ReferenceError: Symbol is not defined
    at PressList.render (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:34928:53)
    at /tmp/nacmartin_phpexecjs67527214455877.77660627.js:60796:21
    at measureLifeCyclePerf (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:60076:12)
    at ReactCompositeComponent._renderValidatedComponentWithoutOwnerOrContext (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:60795:25)
    at ReactCompositeComponent._renderValidatedComponent (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:60822:32)
    at ReactCompositeComponent.performInitialMount (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:60362:30)
    at ReactCompositeComponent.mountComponent (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:60258:21)
    at Object.ReactReconciler.mountComponent (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:7412:35)
    at /tmp/nacmartin_phpexecjs67527214455877.77660627.js:65166:36
    at ReactServerRenderingTransaction.TransactionImpl.perform (/tmp/nacmartin_phpexecjs67527214455877.77660627.js:10427:20)