I'm using cisco vpn client 5.0.07.0410 using Etoken with certificate authentication. And i can no longer connect to vpn remotely. I get error message in vpn client loggs:

26 21:09:52.027 01/04/16 Sev=Warning/3 IKE/0xA3000068
Received un-encrypted ISAKMP packet, but our SA is crypto active

I use udp transparrent tunneling, haven't changed any configuration from my side. What could be the issue?