Error: DbgStack: DbgFcnOut() function does not match function on stack

I upgraded Data Protector to A.07.00 on Cell Manager +IS and I had problems about Linux client agents, which are upgraded to 7.0 too, because I have this error into debug.log:

PM  INET.18975.0 ["/inet/inet_util.c $Rev: 35560 $ $Date:: 2013-01-21 14:03:58":768] A.07.00 b103
DbgStack: DbgFcnOut() function does not match function on stack!
    ExitFcn="ExecuteUtilCommand", StackFcn="GetInstalledModules"

Function trace (currentLevel=1):
        Level  1: GetInstalledModules()
        Level  0: ExecuteUtilCommand()

"ExecuteUtilCommand" found on stack, adjusted level to 0 (one or more DbgFcnOut() calls missing)

My DP GUI shows:

[Major] From: dp@example.com "server"  Time: 21/08/2013 15:31:35
[61:1005] Got unexpected close from VBDA on server.example.com

Suggestions ?