No Longer Works! – Keynote Review

This app no longer works! I can open the application, yet I am unable to open/load any templates not even the Basic White template. When I click on the template a message pops up that says “Can’t Open Presentation “Presentation.key” can’t be opened right now. Keynote couldn’t read the file.” Also, I no longer have access to any previous documents; it’s like they all got deleted and I know I didn’t delete them. I am also having this same problem in Numbers, but not in Pages. Please fix it!
Review by 3GBear on Keynote.