Energy dashboard cannot convert to number my solar production from Youless

I’m using the Youless Integration to read my solar panel production and would like to add this to the energy dashboard. But I get an error that the number cannot be converted to number, probably because of the comma.
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Where/how should this be solved. Is this a localization problem? A bug in the Youless integration? Or the energy dashboard?
And how could I work around this?