14133 Referencing a list item that has not yet been assigned
Cause
This error occurs if your application code attempts to reference an entry in a list box or combo box with an attached listCollection that is logically correct but the entry is not yet assigned. For example, a list box has only entries 1 through 10 attached so far, but code refers to list entry 11, which has not yet been generated by a displayEntry event.
Action
Change your application code to prevent this.
