He had been warned by judges and prosecutors. He had been spared house arrest, he could campaign before the European elections, but he could not speak too much. No attacks against the judiciary, and in general no statements incompatible with his rehabilitation process.
He did exactly the opposite. He attacked the judiciary, including the Italian President, who is the Chief of the Judiciary according to the Constitution. He claimed to be “entitled” to a presidential pardon to be granted ex officio, without his request. He added, en passant, that the Nazi extermination camps never actually existed, and that this historical truth is already established in Germany.
Now the Italian press is announcing that the Court his examining his public statement. His community service could turn into house arrest, while a simply admonition looks more likely.