This incident has been resolved.

Since 00:00 CEST today, some merchants have been receiving the same automatic report several times, in some cases every minute. At 07:55 CEST we paused automatic report delivery, so no new duplicate reports are being created. We have identified the cause and are working on a fix. Scheduled reports may be delayed until then, and a few duplicate emails still in the queue may yet arrive. Payment processing and payouts are not affected. We will post another update once automatic reporting is working normally again.