javascript - Firebase cloud functions stopped working - event.data undefined

Question

I have some cloud functionsbut they suddenly stopped working, now I'm getting event.data undefined

exports.newMessageReceived = functions.database.ref('/messages/{pushId}')
 .onWrite((event) => {

    if (event.data.previous.exists() || !event.data.exists() ) {
        //Do nothing if data is edited or deleted
        console.log('Message edited or deleted - skip');
        return;
    }
   ...
}

And I get

TypeError: Cannot read property 'previous' of undefined

This is how it is defined here. There was any change in firebase cloud functions?

Answer 1

Waitting for answers