Go: vim autocomplete <ENTER> command don't works

autocomplete in vim doesn't work when I hit ENTER and the cursor go to the next line.

this is my .vimrc configuration: https://github.com/marcosvidolin/dotfiles/blob/master/.vimrc

Popup example:

Thanks

you need to add this to your .vimrc

inoremap <silent><expr> <cr> coc#pum#visible() ? coc#_select_confirm() : "\<C-g>u\<CR>"

source : Completion with sources

I am using vim and using Coc module for language server configuration.
Try to run these following steps:

• Install gopls GO111MODULE=on go get golang.org/x/tools/gopls@latest
• Open you vim and type :CocConfig and setting up go language configuration like the following bellow. (note: feel free to customize the value, especially in field rootPatterns)

{
	"languageserver": {
		"golang": {
			"command": "gopls",
			"rootPatterns": ["go.mod", "main.go", ".vim/", ".git/", ".hg/"],
			"filetypes": ["go"],
			"initializationOptions": {
				"usePlaceholders": true
      }
    }
  }
}

• Save File and Reload your vim configuration