This has been transcribed from a support email
How do we resolve this error

When you go to the Edit-> Meter Totals screen, and press on the Hide Check Totals link, the situation becomes clear:

As you can see, the 1 June readings seems to have a problem. You'll also notice the status 9, meaning that somehow there was a manual entry involved.
My advise would be to simply click on the recalculate, and hopefully the energy lost and the extra energy on both sides of the total will resolve each other.
I'd also delete check totals, just to make the problem simpler and the audit easier.