Calendar app import funtion and code fragments in the surface

Hi there

I just installed nextcloud 10.0 aswell as the calendar app.
The import function doesn’t seem to work and specially there are many code fragments in the surface. It looks like i missed something important during installation?

Thanks for your help

Where did you get the app from?

I know it’s the owncloud page, but in the description it sais: “The Nextcloud Calendar app enables…”

Is it the wrong one?

No, that version should work just fine.

I get the following setup warnings - may my problem have any connection?

-/dev/urandom is not readable by PHP which is highly discouraged for security reasons. Further information can be found in our documentation.You

-No memory cache has been configured. To enhance your performance please configure a memcache if available. Further information can be found in our documentation.