Nextcloud calendar : very slow + impossible to upgrade Yunohost from 11.2 to 11.3

[wbk]

Hi turbinecoop,

Let’s fix apt and upgrading, before looking at the calendar.

@turbinecoop

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: [Index of /php/](https://packages.sury.org/php) bullseye InRelease: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 [DEB.SURY.ORG](http://DEB.SURY.ORG) Automatic Signing Key

This seems to happen now and again.

OniriCorpe gave a possible solution in an earlier thread. Does it work for you?