Website says not found

I can go into WordPress and see and edit my pages, but if someone goes to view my website at :https://www.imagineearthsalem.com/ this is the message they get:
“Not found
Apologies, but no results were found for the requested archive. Perhaps searching will help find a related post.”

I switched themes and added the ecommerce plug-in the day before so I have a feeling it has to do with that, but I uninstalled and re-installed them hoping that would help, but it’s still not working. Any help would be really appreciated!