Dunno if its only a bug in my system but every now and then the Daily or even monthly meter of a random power meter plug is giving me like 7000kwh wicks. Often during a core update or just a reboot. That messes up the history. Would be Nice to get it fixed or at least be able to remove those values a bit easier from the hassio history 
This is an issue with your source sensor(s). There are many posts on the forum on how to fix this. WTH is not a configuration support category. If you need help, create a post in the configuration category showing the sensor config for the sensor you have issues with in the energy dashboard.