attempt to call field 'keycode'

[darker]

Description

Since i updated my plugin, i got :

E5113: Error while calling lua chunk: .../pack/packer/start/nvim-insx/lua/insx/kit/Vim/Keymap.lua:29: attempt to call field 'keycode' (a nil value)
stack traceback:
        .../pack/packer/start/nvim-insx/lua/insx/kit/Vim/Keymap.lua:29: in function 'normalize'
        .../nvim/site/pack/packer/start/nvim-insx/lua/insx/init.lua:297: in function 'add'
        ...pack/packer/start/nvim-insx/lua/insx/preset/standard.lua:16: in function 'setup_insert_mode'
        ...pack/packer/start/nvim-insx/lua/insx/preset/standard.lua:10: in function 'setup'
        /home/dk/.config/nvim//lua/plugins_config.lua:439: in main chunk
        [C]: in function 'require'
        /home/dk/.config/nvim/init.lua:21: in main chunk

Maybe from latest updates on the plugin ?

[hrsh7th]

I'll fix it. please wait.