Can't view homepage unless logged in

Site was working fine for a month. Now when users go to the homepage, they get a white screen but able to view child pages fine. The homepage CAN be viewed when logged in though. No changes have been made to the site.

homepage: https://bleachersgifts.com/

Child page: https://bleachersgifts.com/product-category/washington-state-university-cougars/

Any help would be greatly appreciated.