Got 404 Not Found from nowhere (I guess)

Question

So I was working fine with my site and my admin panel, but today I wanted to access my frontend and I see this

And in the tab I see

I can't neither access the backend.

What can be happening? Thank you!!

Answer 1

This happens when your static view files aren't redeployed after running an upgrade.
Try this solution, run the following commands:

php bin/magento setup:upgrade  
php bin/magento setup:static-content:deploy -f  

Then check if your frontend works.

Side Note: Remember to always run static-content:deploy every time you run an upgrade command