Crash annoying

This app has been updated yet so far but done bugs still there,
Crashes when edit or delete entries,
Custommer section in invoice is messed up and type over typed now .
Very simple and useful invoice maker but theres no more care for this app anymore as I can see. Using it for my business about 2 years now but crashes each time makes me and my staff so annoying .

farzia about Invoice Studio, v2.1