default, when you create a table control in a form, Bizagi does not include columns to it. All tables require at least one column to be
able to save the form.
Bizagi 10.x and 11.x
error message is displayed when trying to save a form containing a Table
control with no columns configured yet.
you have inserted a Table control in a form but you haven't included
any columns to it, and you try to save the form, an error message is
button in the Table and include at least one column, i.e., attribute of the
collection, to be displayed.