Multiecuscan

Hi, I have this cable and I also bought the yellow adapter but I still can't connect to the car. The car is a Fiat Punto Evo 1.3 Multijet 16V. I connect the yellow adapter when the program tells me to do but the connection doesn't work.

What could be the problem?

https://postimg.cc/ctW9k5Br
https://postimg.cc/1VKWkcvM