Solar Log 50 and HTTP Binding

Hello,
im trying to get the actual value of mit solar plant. I have an Solar Log 50 device that generate a website. I would cache this site an try to get the value out of there with regex.

The website looks so:

the http.cfg looks so:

http:Solarlog-cache.url=http://192.168.2.40
http:Solarlog-cache.updateInterval=60000

and the file solar.items

Number Solar_Aktuell "aktuelle Leistung [%.2f]" <inverter>  { http="<[Solarlog-cache:30000:REGEX(.*Erzeugung</span>.*?([0-9\\.]*)</span>.*)]" }

regex101.com gives me these matches when I use the source code as test string.


(Note: on the first Screenshot it show the 0.99 and on the screenshot of regex101 it shows 0.50 but its the same place where the actual value dispalys)

But on my sitemap it won’t show any Value just “-”

Im new with the http-binding so what is wrong?

Best regards