I am new to RPG Maker so i am wondering if there is anyone who can answer these questions for me.

1. When i click on the Icon to run the game a message is displayed saying "Failed To Create Process". How can i play my game without this message arising?
2. How do u make a chest event?
3. How do u make a door from the inside of a house to go outside without it being there just on it's own?

It would be a great help if anyone could answer these questions. Please try!