Ransomware protection app

A few weeks ago I have installed the Ransomware protection app.
At this moment Nextcloud halts the sync clients. I can’t find how I have to configure this app, because I want to set up that some files are safe for uploading and syncing.
In the section ‘Settings’ I found a subsection ‘Additional setting’ which only tells me that the Ransomware protection is active. There are no more settings available.

Best regards,
Marianne van Harten