graph.html?ref=<name> gives Communication Error

Hi,

Perhaps someone can give be some pointers. Datamine2 was (and mostly is) working until a week ago. Since then the vera/dm/graph.html?ref= only displays “Error communicating with Vera!”.

The dm gui works, and the saved graph that I reference also works.
Tried rebooting and delete/recreate the saved graph.

Any ideas on how to solve this?

Thanks.
PDJ