Required attribute ”title“ was not provided.”

Required attribute "title" was not provided."

After integrating facebook SDK for both Android and iOS, when setting the
campaign and clicked on "place order" we get the error "Required attribute
"title" was not provided." I didn't understand what the error mean. I
would like to know what could be the cause of this error so that I can try
to find a way to fix it. Is this related to the sdk integration or how we
set the ad? For iOS this is the first time I run the campaign with
Facebook SDK but I've run the Android campaign earlier and it worked fine.
After I stopped the first campaign to change the banners and place the
order again, I found this error. Thanks
pls answer me or Recommend