Hello Mr. Fernando Pereira,
you ask the same question inside the forum english and french and also via email to me.
I saw on you screen shot via email:
No, there is no Lok on the start contact !!
That means , you have not placed the right loco from the symbol bar to the train number display via drag and drop !! Empty field !! So, Win-Digiet could not know which loco is to be started
Perhaps you read a little bit more the english manual or watch the youTube samples before asking such a simple problem.
regards