Unable to use gzi gzz commands

[dileepkushwaha]

Hi, I am trying out neuron on ubuntu environment.
I have installed the necessary dependencies.
I'm unable to run commands like gzi, gzz on vim.
On opening any of the files I get few errors before the content is visible momentarily.

While using the commands with 'e' suffix for creating a new index, i get error:
-e option can only be used with EDITOR environment variable set

Here is the error I encounter while running gzi:
Error detected while processing function neuron#insert_zette
l_select:
line 13:
E117: Unknown function: fzf#wrap
E116: Invalid arguments for function fzf#run

version of neuron: 1.9.3.0
Have updated the plugin to the latest version via PlugUpdate
I have the neuron.dhall with only plugin information
Using vim 8.1
Ubuntu with regolith linux environment(Basically, i3)
Thanx

[fiatjaf]

It seems you need fzf.

[dileepkushwaha]

I already had fzf plugin. It seems PlugUpdate was not working for this particular plugin.
I still have those errors flashing while opening up the files but the commands for neuron.vim are working now.

The error is indicating at line 26(Have removed certain plugins, error changed from line 40 to 26)
25: ~/.vim/plugged/neuron.vim/plugin/neuron.vim
26: ~/.vim/plugged/neuron.vim/autoload/neuron.vim