error when inserting buttons in forms

hello, I need help with access I have created a database that contains forms and I have been inserting print buttons etc without problems until suddenly, when I insert a button I no longer get the dialog boxes to see the type of button and what What should I do? Now I get the button directly with the text "command 57" for example.
I don't know what I can do to get the database to let me add buttons again and tell me what I want to do with them.