PIM parsing error - can't see events from Nextcloud

Hello,

Kalendar and KOrganizer wont parse all of events from my Nextcloud 
calendar, only full day ones. Windows fetches them perfectly, as well as 
my android phone with davx5. Typing "konsolekalendar" gave me those 
errors: https://rentry.co/8u4ha i assume that errors lies within parser, 
but i can be wrong, it can be on Nextcloud's side, but i want to be sure 
before submitting any bug to either KDE or Nextcloud development team.

KDE Plasma 5.25.5 on EndeavourOS.