Sales Crash in October 2025

Hi guys, we have witnessed a significsnt decrease in our daily sales the last 2 weeks. We did on average 5k revenue per day, dropping to 0.6k to 1k per day. We have been on Amazon for 11 years and it is the first time this happened in this form. We did not make any ppc or product changes. Anyone experiencing similar developments? (We are selling strictly on Amazon Germany)