can't access onscreen keyboard while sending email attachment with pages

Hi everyone! I desperately need your help.

When first downloaded the pages app on my Ipad, I was able to use the toolbar (on pages) and directly attach documents and send them as an email. Now, whenever I do it, I cannot tap to add an email address, subject, or message and the onscreen keyboard will not show up! The only thing I can tap is to cancel. Everything else works on Pages. I can tap on an area and the keyboard shows up. Plese help!!!

Thank you!!!