It's not McAfee is it??? I recongise the Port number! (but others may use it as well - just a guess!)
So where is this flow error coming from? AV to Virtual server? Or f5 to pool member?
Where is 192.168.201.37:8081?? I'm guessing this is a f5 to pool member flow?
So to remove the encryption you just need to remove the client and server SSL profiles from the virtual server.
But there must be a way to check this, maybe even take a pcap of the flow and have a better look,
Possible f5 support could look at the config and that pcap for you with more understanding of what those errors mean.