Was it a mistake of the referee that the goal wasn´t approved?
Yes, the ball bounced off the goalpost so that Foky could rebound it. The goal should be recognized.
No, the goal should not be approved because the player who shoots the penalty kick may not rebound the ball. The ball could be rebound by the team-mate and the goal would be valid.
No, no penalty kick may be rebound.
No, Foky is not allowed to touch the ball twice. Foky would have rebounded the ball if the goalkeeper had punched it away.
No, the fouled player may not shoot a penalty kick.
Answer