3 Hichi Wifi Smart Meter Reader integration in Home Assistant

Hello!

A few weeks ago i integrated a Hichi Wifi Energy Meter Reader with MQTT to my HA.
Now I wanted to add 2 more because I have 3 Meters in my house, but I don´t know how to do.
If I want to add a second integration of Tasmota, it says that only 1 is possible.

What am i doing wrong and can somebody discribe how to do more than 1?

Best regards
Maverick