Lovelace Guage Card - entity is non-numeric

Maybe someone will be able to help me. I’m using Aqara AC companion to power my PC, but so far i’m unable to read power load to gauge. It says ‘entity is non numeric’, entity is “switch.xiaomi_gateway”, but it does have “Load power” attribute. I just can’t read it into gauge. “state_attr” is not working, tried many times.

Other, small xiaomi smart sockets are okay, they output load power value correctly.

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Is dit al opgelost, ik ben nog op zoek voor mijn probleem, misschien kan dit mijn probleem ook oplossen?