Wrong reading from power meter

Hello all…
I have now tried for some time to fix a reading in the HA energy dashboard.

I had a AMS Reader that have been down for some time and have now broget it back to live again so that I can use it again.

The thing is that there suddenly is registered a big export of power in my import.
I have been trying to find the error to correct it and can’t seem to find it in the statistics options.

Do anybody here know how to fix it?