AV-ERROR

Hi all,
I have written a program to send a data to airvantage server with timer interval of 10 seconds. It works properly. But sometimes it stops working and the error I get is as follows:

In minicom i get:

2015-09-11 11:34:39 AV-ERROR: swi_av_table_PushRow: EMP command failed, res -16
Failed to push row to agent

And in logs I get this:

Sep 11 11:34:51 swi-mdm9x15 user.err Legato: =ERR= | AirVantage[654]/AirVantage T=main | M3DA-SESSION(default.lua) () 89 | Closed session #24 with error connection_closed
Sep 11 11:34:51 swi-mdm9x15 user.err Legato: =ERR= | AirVantage[654]/AirVantage T=main | DATAMGR(datamanager.lua) () 388 | Server emission error: connection_closed
Sep 11 11:34:51 swi-mdm9x15 user.err Legato: =ERR= | AirVantage[654]/AirVantage T=main | SRVCON(srvcon.lua) () 129 | Error while sending data to server: connection_closed

And it is very unpredictable, some time my program works exactly as i want but some time I get this error.
Does anyone have any about this??

Hi,
Which product are you using?

Thanks,
Alex