[FullCalendar 2] Events gets deleted and random events are added after some time?

Forge Component
(27)
Published on 2019-03-29 by Daniel Filipe
27 votes
Published on 2019-03-29 by Daniel Filipe

So i got this strange behaviour that  in some period of time, the events that i created , getting deleted ...and i have no idea why.

Another question is how i get the Weekdays and Monthnames changed .


Here is my Advanced Config and a screen shot what i want to change:
Yellow marked is what i want to change.

You guys got any solution?

The Confg