Crash Log
https://gist.github.com/DPxKnightxZero/2eff524ffb8337cc3ab6

Client Log
https://gist.github.com/DPxKnightxZero/e516b3d237c357dc5600

Fixed in 1.1.1.

<3 you are the best <3

Thanks.
Also, before launching mc, delete extensions folder in config/colorfulblocks :) .