[tor-talk] Strange repeating Tor log error message

[hikki at Safe-mail.net]

When I enable a hidden service, I get this error message repeatedly in my Tor log:

"[warn] connection_edge_process_relay_cell (at origin) failed."

When I disable the hidden service and use Tor normally, it doesn't show up anymore.

What is this error message? Bad configuration/firewall? Bad entry node?
Anything to be concerned about?

Thanks in advance for help! :)