Notes disappeared on phone, but visible on my computer

This morning, all of my notes on my my phone suddenly disappeared. I’m lost! I use notes for everything. The good news is I can see them on my computer, but obviously can’t access that on the go. Why are they gone from my phone, how do I get them back?

I did check my settings and all my Mail accounts have notes activated, and the “on my phone” is activated in the Notes settings.