Exception in rendering!

Message: Cannot read property 'split' of null

TypeError: Cannot read property 'split' of null
    at o (<anonymous>:135:997844)
    at <anonymous>:135:1008599
    at Array.map (<anonymous>)
    at l (<anonymous>:135:1008158)
    at i (<anonymous>:208:11190)
    at Me (<anonymous>:208:12208)
    at e.t.render (<anonymous>:208:14790)
    at e.t.read (<anonymous>:208:14362)
    at t.renderToString (<anonymous>:208:19515)
    at AppContainer (<anonymous>:147:137886)