Exclamation Calendar Bug for Maximus HD 32.1.0 OS for HTC ONE

Hi

I have no idea how to get this to the developers of Maxims HD OS for HTC ONE v32.1.0.
The OS has a bug in the Calendar app. It doesn't allow to edit the calendar events.
My HTC ONE (international version) calendar app is synced with Google Calendar. When I get into the HTC ONEcalendar app, and try to edit one of the events, its just crashes and closes the app.

Could someone please help me in getting this message to the developers so that they can include a fix in the next update?

Thanks a million for any help I get here.

Thanks
Rafzy