info Widget with Editable Table Widget

Hello everyone 

   How can I put "info Widget" next to the name of the column in "Editable Table Widget" as in the picture

For when I put them and publish it, The page does not work !
* Knowing i use Dublin Template 

Hi Arwa,

The "Internal Error" page is produced whenever there's an uncaught Exception. So yes, something goes wrong, but to check what goes wrong, you'll need to open Service Center and look in the error log. Without the exact error, it's impossible to tell what is the cause of this.