"connection failed" after choosing account

Installed version:

Nextcloud bookmarks version 1.18 (f-droid) Nextcloud version 3.23.1 (f-droid)

After choosing the correct nextcloud account, on screen I only get the message "Connection failed, check internet, URL and certificates".

Of course I do have internet connectivity, the URL configured in the nextcloud main app is correct and certificates are valid.

In logcat there are a number of exceptions, but I believe the culprit is the following:

02-13 08:57:58.253 14144 14156 E InputStreamBinder: Error during Nextcloud request
02-13 08:57:58.253 14144 14156 E InputStreamBinder: java.io.InvalidClassException: com.nextcloud.android.sso.aidl.NextcloudRequest; local class incompatible: stream classdesc serialVersionUID = 3243944772997739870, local class serialVersionUID = 215521212534240

Thanks for your app, I'm looking forward to being able to access my bookmarks from the phone!

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