To proste :) Wpisy sortowane są wg licznika. Popatrz na licznik. Wprowadzam ogólnie zabezpieczenie, które nie pozwoli na coś takiego - sprawdzi czy starsza data nie ma wiekszego licznika niz ostatni.

It would be great if you can send me (by mail) bug report. Take a look at this movie: https://www.youtube.com/watch?v=6zvyEeFuXAg

You should be able to activate bug report settings and use it. Just run it, then try to run Fuelio (few times) and wait for info. It will create txt file with logs. Send me them

OK. I want to fix this bug. Mail me please.

Please also try to add widget to your homescreen and use it to run Fuelio. It should start add screen. Try to start Fuelio like that.

Do  you have backup? If yes. Try to uninstall and install it again. I'm curious if you could reproduce this after new install. I've got S4 with old data and I haven't got problems. Maybe this is data related. Hard to say. If you can send me report using "Report" button after the crash - please leave your name there. Would be helpful.

Another question. Do you have pro version? If this is very old bug you could try uninstall key, run app to check if it's OK, send me backup. This way we will exclude this is old bug. 

The one from play store. Do you have backup? Csv or db file with your data (fillups). How long do you use Fuelio? How old Fuelio user are you? 

Hi. This could be data related. Do you have backup? I can send you old apk. But I'm interested in your data. Maybe you have incomplete database schema.

Thanks. Added to my TODO list. Sorry for that. You are right. I need to add some more validations. 

This is the next big feauture I'll be working at. It's hard to say when. At the moment I've got my full time job. I don't give public deadlines because I don't want to fail anyone. 

Fuel types + bi-fuel vehicles this is something I need to add and I know it!