internet connected switch (EasyIoT Cloud MQTT API)

Hello,
It's exactly what I have done, but they where back.
So I just delete them 3.
Then recreate one module, then add it to my group (maison).
And I have 2 modules one in default and the same in my group.
I delete the module in default ...
When I start the esp, it tries to connect to ModuleId: 5
and crashes. restarts.... and never go further : "MQTT client id:18:fe:34:e6:7e:3b-c2"
(In the Sketch I put 3 like seen in the server).
It looks like something desynchronized.
??

One file : EasyIot_cloud_relay_pbld.jpg added.

Hello,
I found a pb with my 3.3V (not clean).
I go back to a strong 3.3V
Now no exception but I don't go further than :
Connecting to Livebox-3262
.........
WiFi connected
IP address:
192.168.1.17
Connecting to MQTT server
MQTT client id:18:fe:34:e6:7b:fc-29
connected to MQTT server

I used an other module, with the same messages.

Some pb with the server?

Same pb with 2 x esp01 from sparkfun and esp12 from china.
is it possible to test with AT commands?
(I am very newbe).