Smart Plug Schwaiger ZHS15 reset consumption

Hello everybody,
i have a problem and i hope you can help me. I have the Smart Plug ZHS15 which i have connected to my Zigbee Network (Conbee2) on an Raspi4. This Plug can measure the consumption too.
The problem is that hassio shows me an begining value from around 2116kwh. But i haven´t use the plug before.
I tried to delete some entrys in the sqlite database but it didn´t help. Do you have any ideas why it shows me that value? Best regards