attempt to call method 'find'

[aleyrizvi]

Hello, First time user here. I am getting above error when I start neovim.

error:

Failed to load `plugins.carbon`

...local/share/nvim/lazy/lazy.nvim/lua/lazy/core/plugin.lua:67: attempt to call method 'find' (a nil value)

# stacktrace:
  - ~/.config/nvim/lua/config/lazy.lua:10
  - ~/.config/nvim/init.lua:2

My carbon.lua plugin is as follows:

return {
  {
    "ellisonleao/carbon-now.nvim",
    lazy = true,
    cmd = "CarbonNow",
    ---@param opts cn.ConfigSchema
    opts = {},
  },
  keys = {
    {
      "<leader>cn",
      mode = {
        "v",
      },
      "<cmd>CarbonNow<cr>",
      desc = "Carbon Now",
    },
  },
}