Lost all delayed reminders after installing new version (android 7)

[mwoz123]

Some time ago I'd installed CalendarNotifiacations from Google play. As suport for Google Play was terminated, I decided to upgrade - build from sources (used tag 5.0.4).

Before installing 5.0.4 (build) version I had to remove previous version of Calendar Notificaitons (it didn't allow me to upgrade) . I'm using Android 7.0.

After installation (it seems my prev configuration was still there - or similar is now default(?), but) all my previously delayed reminders were lost :(

Could you fix this bug so next time I won't lose my delayed notifications/reminders?

[mwoz123]

I assume it's not possible to recover them now, right? Lost over 30 reminders (couple of them were delayed for a long time) :(