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

Forge Component
(26)
Published on 29 Mar by Daniel Filipe
26 votes
Published on 29 Mar 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