attempt to index local 'opts' (a nil value)

[outp1]

I'm getting following error when trying to call handler:

Error executing vim.schedule lua callback: ...lazy/omnisharp-extended-lsp.nvim/lua/omnisharp_utils.lua:152: attempt to index local 'opts' (a nil value)
stack traceback:
        ...lazy/omnisharp-extended-lsp.nvim/lua/omnisharp_utils.lua:152: in function 'cmd_params'
        ...lazy/omnisharp-extended-lsp.nvim/lua/generic_command.lua:39: in function 'omnisharp_cmd'
        ...lazy/omnisharp-extended-lsp.nvim/lua/generic_command.lua:50: in function 'handler'
        ...nvim/lazy/omnisharp-extended-lsp.nvim/lua/definition.lua:140: in function 'handler'
        /usr/share/nvim/runtime/lua/vim/lsp/client.lua:687: in function ''
        vim/_editor.lua: in function <vim/_editor.lua:0>

My configuration looks like this. There is a small chance that it's an AstroNvim issue.

return {
  "AstroNvim/astrolsp",
  -- we need to use the function notation to get access to the `lspconfig` module
  ---@param opts AstroLSPOpts
  opts = function(plugin, opts)
    opts.servers = opts.servers or {}
    table.insert(opts.servers, "omnisharp")

    opts.config = require("astrocore").extend_tbl(opts.config or {}, {
      -- this must be a function to get access to the `lspconfig` module
      omnisharp = {
        handlers = {
          ["textDocument/definition"] = require("omnisharp_extended").definition_handler,
          ["textDocument/typeDefinition"] = require("omnisharp_extended").type_definition_handler,
          ["textDocument/references"] = require("omnisharp_extended").references_handler,
          ["textDocument/implementation"] = require("omnisharp_extended").implementation_handler,
        },

        -- the command for starting the server
        cmd = { "omnisharp", "--languageserver", "--hostPID", tostring(vim.fn.getpid()) },
        -- the filetypes to attach the server to
        filetypes = { "cs" },
        settings = {
          omnisharp = {
            enableDecompilationSupport = true,
          },
        },
        -- root directory detection for detecting the project root
        -- root_dir = require("lspconfig.util").root_pattern "pack.pl",
      },
    })
  end,
}

After i change line of plugin code from this:
excludeDefinition = opts.excludeDefinition or false,
to this:
excludeDefinition = false,
all works just fine

[Hoffs]

As I understand #49 should have resolved this