Default Multiple notifications from calendar


I don't know why but I am using acalendar and taken away notifications from Google calendar & (htc) calendar. Still I am getting multiple notifications when appointment happens.

I really don't know what to do. I have checked multiple times that my notification ticck is disabled from Google Kalender and HTC Calendar.
"Cuius testiculos habes, habeas cardia et cerebellum"

HTC One ARHD 71.1