afterinstalling the firebase cloud function and deploying the function it should work every 1 min but it not working how can i fix that? thanks for help.

exports.scheduledFunctionCrontab = functions.pubsub.schedule("* * * * *").timeZone("Israel")
  .onRun((context) => {
    console.log("This will be run every 1 min!");
    addCoursesHistory(2222, 111, 3);

    return null;
  });

const addCoursesHistory = (uId, courseId, day) => {
  admin.firestore().collection("CoursesHistory").doc(`${courseId}_${day}`).add({
    courseId,
    day,
    uId
  });
};