key highlight_prefix not exist in config values

[banchanbetispro]

Error:

whenever i try to source the configuration file, this error pops up

Error detected while processing :source (no file):
E5108: Error executing lua ...site/pack/packer/start/lspsaga.nvim/lua/lspsaga/init.lua:58: [LspSaga] Key highlight_prefi
x not exist in config values
stack traceback:
[C]: in function 'error'
...site/pack/packer/start/lspsaga.nvim/lua/lspsaga/init.lua:58: in function 'extend_config'
...site/pack/packer/start/lspsaga.nvim/lua/lspsaga/init.lua:76: in function 'setup'

Additional information

My plugins manager file using packer.nvim

vim.cmd [[packadd packer.nvim]]

return require('packer').startup(function(use)
        -- Packer can manage itself
        use 'wbthomason/packer.nvim'
        use {
                'nvim-telescope/telescope.nvim', tag = '0.1.5',
                -- or                            , branch = '0.1.x',
                requires = { {'nvim-lua/plenary.nvim'} }
        }
        use 'echasnovski/mini.indentscope'
        use {
                "windwp/nvim-autopairs",
                config = function() require("nvim-autopairs").setup {} end
        }
        use {
                "nvim-telescope/telescope-file-browser.nvim",
                requires = { "nvim-telescope/telescope.nvim", "nvim-lua/plenary.nvim" }
        }
        use {
                'nvim-lualine/lualine.nvim',
                requires = { 'nvim-tree/nvim-web-devicons'}
        }
        use {
                'nvim-treesitter/nvim-treesitter',
                --run = ':TSUpdate'
        }

        use {
                'folke/tokyonight.nvim'
        }

        use {'neovim/nvim-lspconfig'}
        use { 'kkharji/lspsaga.nvim', branch = 'nvim6.0' or 'nvim51' }


end)

My configuration file for lspsaga (where the error occurs)

local lspsaga = require 'lspsaga'
lspsaga.setup { -- defaults ...
  debug = false,
  use_saga_diagnostic_sign = true,
  -- diagnostic sign
  error_sign = "",
  warn_sign = "",
  hint_sign = "",
  infor_sign = "",
  diagnostic_header_icon = "   ",
  -- code action title icon
  code_action_icon = " ",
  code_action_prompt = {
    enable = true,
    sign = true,
    sign_priority = 40,
    virtual_text = true,
  },
  finder_definition_icon = "  ",
  finder_reference_icon = "  ",
  max_preview_lines = 10,
  finder_action_keys = {
    open = "o",
    vsplit = "s",
    split = "i",
    quit = "q",
    scroll_down = "<C-f>",
    scroll_up = "<C-b>",
  },
  code_action_keys = {
    quit = "q",
    exec = "<CR>",
  },
  rename_action_keys = {
    quit = "<C-c>",
    exec = "<CR>",
  },
  definition_preview_icon = "  ",
  border_style = "single",
  rename_prompt_prefix = "➤",
  rename_output_qflist = {
    enable = false,
    auto_open_qflist = false,
  },
  server_filetype_map = {},
  diagnostic_prefix_format = "%d. ",
  diagnostic_message_format = "%m %c",
  highlight_prefix = false,
}

Im using
Arch WSL2
Neovim 0.9.5