It's failing on cache because you cant use the older files to root a newer update!
As others have said its Kingo on MJE, if it failed just try it again until it pushes the supersu then flash a good one thru safestrap after
Nexus 10 32GB 4.4.2 / Unlocked /Rooted
Nexus 7 16GB C8 4.4.2 / Unlocked /Rooted
LTE Galaxy Nexus 32GB 4.4.2 / Unlocked /Rooted
LTE Galaxy SIII 32GB 4.4.2 CM11 / Unlocked /Rooted
LTE Galaxy Note 3 4.3 / Rooted
"Executing sudo command."