Exception in rendering!

Message: Cannot read property 'toUpperCase' of undefined

TypeError: Cannot read property 'toUpperCase' of undefined
    at <anonymous>:199605:30
    at <anonymous>:3963:46
    at List.__iterate (<anonymous>:3153:13)
    at IndexedIterable.mappedSequence.__iterateUncached (<anonymous>:3962:23)
    at seqIterate (<anonymous>:1551:16)
    at IndexedIterable.IndexedSeq.__iterate (<anonymous>:1267:14)
    at IndexedIterable.toArray (<anonymous>:5205:23)
    at List [as constructor] (<anonymous>:3012:62)
    at reify (<anonymous>:4517:37)
    at List.map (<anonymous>:5348:14)