Unable update collection feild value feild after create schema?

hello developer i have created a following schema

const playerSchema = new SimpleSchema({
  name: { type: String },
  userid: { type: String, regEx: SimpleSchema.RegEx.Id },
  rating: { type: SimpleSchema.Integer }
});

const actionSchema = new SimpleSchema({
  type: {
    type: String,
    allowedValues: ["move", "takeBack", "draw", "resigned", "aborted", "game"]
  },
  value: { type: String },
  actionBy: { type: String }
});

const GameSchema = new SimpleSchema({
  startTime: {
    type: Date,
    autoValue: function() {
      return new Date();
    }
  },
  requestBy: {type: String},
  status: {type: String},
  clocks: new SimpleSchema({
    white: new SimpleSchema({
      time: {type: SimpleSchema.Integer},
      inc: {type: Number}
    }),
    black: new SimpleSchema({
      time: {type: SimpleSchema.Integer},
      inc: {type: Number}
    })
  }),
  white: new SimpleSchema({
    name: { type: String },
    userid: { type: String, regEx: SimpleSchema.RegEx.Id },
    rating: { type: SimpleSchema.Integer }
  }),
  black: new SimpleSchema({
    name: { type: String },
    userid: { type: String, regEx: SimpleSchema.RegEx.Id },
    rating: { type: SimpleSchema.Integer }
  }),
  moves: [String],
  actions: [actionSchema]
});

GameCollection.attachSchema(GameSchema);

After i successfully insert value this schema on game_create method

let game = {
      date: new Date(),
//      status: them.settings.autoaccept ? "playing" : "pending",
      status: "pending",
      requestBy: us._id,
      clocks: {
        white: { time: time * 60, inc: increment },
        black: { time: time2 * 60, inc: increment2 }
      },
      white: {
        name: white.username,
        userid: white._id,
        rating: white.rating
      },
      black: {
        name: black.username,
        userid: black._id,
        rating: black.rating
      },
      moves:[],
      actions: []
    };

whne update game status pending to playing neither update nor throw error

GameCollection.update({ _id: game._id }, { $set: { status: "playing" }});