Error when exiting Neovim

[lostl1ght]

Describe the bug
After 973659e there's an error and a lag in a terminal whenever one exits Neovim and has Heirline installed.

Which version of Neovim are you using?

• Terminal: alacritty with tmux
• Version: latest nightly:

NVIM v0.9.0-dev-329+ged27f0e93
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3

To Reproduce
Steps to reproduce the behavior:

1. Open Neovim
2. Exit Neovim
3. Observer an error

Error

Error executing vim.schedule lua callback: ...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:267: Vim:E5108: Error executing lua ...k/packer/start/heirline.nvim/lua/heirline/statusline.lua:348: bad argument #1 to 'provider' (string expected, got nil)
stack traceback:
        [C]: in function 'provider'
        ...k/packer/start/heirline.nvim/lua/heirline/statusline.lua:348: in function '_eval'
        ...k/packer/start/heirline.nvim/lua/heirline/statusline.lua:365: in function '_eval'
        ...k/packer/start/heirline.nvim/lua/heirline/statusline.lua:440: in function 'eval'
        ...te/pack/packer/start/heirline.nvim/lua/heirline/init.lua:71: in function <...te/pack/packer/start/heirline.nvim/lua/heirline/init.lua:66>
        [C]: in function 'redrawstatus'
        ...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:267: in function <...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:263>
stack traceback:
        [C]: in function 'redrawstatus'
        ...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:267: in function <...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:263>⏎

Expected Behavior
An error should not be printed and a terminal should not lag.

Screenshots
Not applicable.

Noice Log
Nothing is printed in log.

Minial Configuration

The error appears only with this ScrollBar component.

Config

vim.o.runtimepath = '$VIMRUNTIME'
vim.o.packpath = '/tmp/nvim/site'
local package_root = '/tmp/nvim/site/pack'
local install_path = package_root .. '/packer/start/packer.nvim'
local function load_plugins()
  require('packer').startup({
    {
      { 'wbthomason/packer.nvim' },
      { 'rebelot/kanagawa.nvim' },
      -- plugins
      {
        'folke/noice.nvim',
        requires = 'MunifTanjim/nui.nvim',
        -- commit = '1b2caaa116c13f062b520b28eaa609cc82dabb94', -- <-- previous commit works
      },
      { 'rebelot/heirline.nvim' },
    },
    config = {
      package_root = package_root,
      compile_path = install_path .. '/plugin/packer_compiled.lua',
    },
  })
end
local function load_config()
  vim.opt.termguicolors = true
  vim.cmd.colorscheme('kanagawa')
  -- config
  require('noice').setup({})

  local ScrollBar = {
    static = {
      sbar = { '█', '▇', '▆', '▅', '▄', '▃', '▂', '▁' },
    },
    provider = function(self)
      local curr_line = vim.api.nvim_win_get_cursor(0)[1]
      local lines = vim.api.nvim_buf_line_count(0)
      local i = math.floor((curr_line - 1) / lines * #self.sbar) + 1
      return string.rep(self.sbar[i], 2)
    end,
  }

  local statusline = {
    ScrollBar,
  }

  require('heirline').setup(statusline)
end
if vim.fn.isdirectory(install_path) == 0 then
  print('Installing dependencies.')
  vim.fn.system({
    'git',
    'clone',
    '--depth=1',
    'https://github.com/wbthomason/packer.nvim',
    install_path,
  })
end
load_plugins()
require('packer').sync()
vim.api.nvim_create_autocmd('User', {
  pattern = 'PackerComplete',
  once = true,
  callback = function()
    load_config()
    print('Ready')
  end,
})

Additional Note

Maybe there's something wrong with this component or it is an Heirline issue if so, please, let me know.

[crivotz]

Same in my config here with Feline

Error executing vim.schedule lua callback: ...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:267: Vim:Feline: error while processing statusline component number 8on section 3 of type 'active' for window 1000: ...e/pack/packer/start/feline.nvim/lua/feline/generator.lua:288: bad argument #1 to '?' (string expected, got nil)
stack traceback:
        [C]: in function 'redrawstatus'
        ...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:267: in function <...te/pack/packer/start/noice.nvim/lua/noice/util/hacks.lua:263>%