AgentCallBackLogin asterisk 1.4.11 crash

I use asterisk 1.4.11 with AgentCallBackLogin and after 2 or 3 hours of usage, I lost the connection with asterisk, the process stop with any information on logs. This situation happens only when I have more that 10 agents logged.

The AgentCallBackLogin it’s deprecated in asterisk 1.4, but wasn’t remove, then I suppose that this situation it was not to occur.

The AgenLogin can’t be used because my agents in queue they receive and they make calls.