Fatal Error with WordPress 6.0.1

Hi again !
I’ve tried to install the free version of the plugin, but it doesn’t activate because of a fatal error: ?Fatal error: Cannot declare class OAuthException, because the name is already in use in /home/clients/[…]/wp-content/plugins/flickr-viewer/includes/api-libs/tbPhpFlickr/org/scribe/exceptions/OAuthException.php on line 31?.

Any idea why and how to solve that ?

Thanks in advance

Yan
Lausanne – Switzerland