What does this mean? ERROR: can't start the quick mode, there is no ISAKMP

[ZappedC64]

What does this error mean?

Aug 16 19:07:26 racoon: ERROR: can't start the quick mode, there is no ISAKMP-SA, a0ff3845cb0a31c4:1bb5ec24c9cece31:0000857e
Aug 16 19:07:16 racoon: ERROR: can't start the quick mode, there is no ISAKMP-SA, a0ff3845cb0a31c4:1bb5ec24c9cece31:0000857e
Aug 16 19:07:08 racoon: ERROR: unknown Informational exchange received.
Aug 16 19:07:06 last message repeated 2 times
Aug 16 19:06:46 racoon: ERROR: can't start the quick mode, there is no ISAKMP-SA, a0ff3845cb0a31c4:1bb5ec24c9cece31:0000857e

My tunnel still drops after an hour. :(