Pages not showing on the website with Mantra theme

Site with Mantra Theme has not been showing pages for a couple of weeks.
thought it was plug ins. deactivated and reactivated some and deleted others.
Still not able to get pages to show. Then tested with another theme and the pages show.
With mantra only the home page and blog page show up.
Site had been like this for a number of weeks.

Would appreciate some suggestions quickly.

website is summerislandstudio.com

thank you in advance for any help that you can offer.
joan