Have trouble on ubuntu 16.04

[wfxr]

Thanks for your brilliant work. I have a problem making the tool work.

After installation when I hit Ctrl+S, nothing appears and the terminal is frozen(double Ctrl-C can exit the status).
following is my zplug config.

zplug "b4b4r07/emoji-cli", on:"junegunn/fzf-bin", if:'(( $+commands[jq] ))'                                                
EMOJI_CLI_FILTER=fzf:peco:percol

I examine the key-binds but seems problem is not here.

$ bindkey | grep "\^S"                                                                                                                      ~
"^S" emoji::cli