GOOGLE CALENDAR ics file import : "Request Entity too Large" or "Mime type not recognized"

[MetallianFR68]

Hi,

I'm lawyer and user of TWAKE CALENDAR through e-calendrier.avocat.fr
I was trying to export my Google Calendar as an ICS file and import it in TWAKE CALENDAR

I get the following error : 413 request entity too large

The same error happens when trying to upload the ICS directly through the webdav server

The ICS file is 2.5 Mb

I tried with a tiny ics file (250 kb)
The error is different : Mime Type not recognized

OS : Linux Fedora 39
Browser : Chromium and Firefox (same problem)

Best regards