BIG Problems - Developer gone missing?

This is an app I use daily. It used to be very good, my favorite app for capturing and saving quotes. It now is not. The app is arbitrarily deleting quotes and/or authors names for no rhyme or reason. I want my data back!!! Plus the developer is unresponsive to emails; what is going on? How can "good" turn into "crap?"

Texas Yankee about Quotebook — Notebook for Quotes