
Plarium is trying to fix it. Here is the first part of their response to the report I made:
"Plarium Support Team
Dear Jarl,
Thank you very much for providing us with this information. We are aware of the situation and are working to solve it. We apologize for the inconvenience caused."
I guess it's not a simple fix but it would have been nice if they could have posted something like that in the forum themselves. But then I suppose people would then be asking when it will be fixed.
This has been an occasional nuisance for a long time, but the past several days it's been out of control. The majority of Invader's Lairs and Ghost's Shelters that I've tried to attack have given the "The location is no longer at the coordinates" error. And they're still on the board days later. :-(