FIX: 7 days LCD switch kwhr to euros
Code clean
Code Clean
No Internet retry interval

If there is no internet its pointless to test every 10 seconds, this
slows down the arduino a lot cause it stays for around 20 seconds trying
to connect. So if there is no internet, just check for internet every 2
minutes or more. This allows arduino to keep running fluently.
FIX: interval to show active error

old method is not valid