[Plugin: CGM Event Calendar] Language

Thank you for this (almost) great plugin, it is almost but not quite, what I was looking for to sort out an awful mess of events.

Unfortunately, it breaks on umlauts (?, ? and all that). Is there a way to heal that? A twenty-four hour time format would be nice as well.

https://www.ads-software.com/extend/plugins/cgm-event-calendar/