Did not receive expected response to conf t command!

     Hi again! As you requested, I've made a new theme with my question. What kind of diagnostics you need from me?

I have the same question as flexible, I have 2 Cisco IOS switches 2960 (first firmware version is 12.2(50)SE5 and another 12.2(58)SE2) when I am trying to use "Device.CLI.Send commands" in Cat tools the switch, which have 12.2(50)SE5 version make all commands correctly, but when running activity  on another(12.2(58)SE2):  "Did not receive expected response to command: conf t" and after that Cat tools stops activity. I used putty(ssh2) as a terminal in cattools.

     P.S. I apologize for my English, if something not right written^^

Thanks!