Exception in rendering!

Message: Cannot read property 'node' of null

TypeError: Cannot read property 'node' of null
    at <eval>:47:72890
    at e.exports (<eval>:74:8053)
    at <eval>:47:235097
    at <eval>:47:290331
    at <eval>:47:47024
    at t (<eval>:47:112694)
    at <eval>:116:44498
    at <eval>:63:2460
    at t.getContributions (<eval>:47:72898)
    at <eval>:47:9409