WLAN Key Change

After a WLAN key Change (my new Android device couldn't handle 32char passwords) I forgot my flukso (shame on me). To make things worse, the flukso rebooted days before I recognized the error. As I understood it right, the flukso discards all data before time sync took place.
In short, I have two missing days of data (which is ok), but the total energy consumtion for three days (8th to 10th of may) is negative.
Is there a simple way to fix this?