Month and Year charts don't plot a line when the "Messintervall" equals 5 minutes.

[ChristianAmmer-zz]

A configuration of a "Messintervall" of 300 seconds causes empty month and year charts. After changing the interval to 145 seconds (which is the default setting), the charts seem to work fine: https://www.madavi.de/sensor/graph.php?sensor=esp8266-1596707-sds011