Site Monitoring is not working

I create log messages (using the code below ) both on the backend and in the frontend. I can not see any of those messages in Site Monitoring UI. It is empty .
As for the UI frontend events - I am only able to see the log message using the browser dev tools .
I followed Corvid by Wix Site >> Monitoring but found no answers.

Note that I saved the code and published the site.

// below is my log message
console.log('message goes here...')

Site Monitor must be running BEFORE you open a published page in browser, it does not catch .logs if not running prior. I would also start using StackDriver. Site Monitor displays logs with a wrong time, which results log between displayed in the wrong order. In StackDriver, all is OK. Hope this helps.

Thanks. After following your tip (" Site Monitor must be running BEFORE you open a published page in browser ") I am able to see few records in the Site Monitor UI. I do not see my log messages but it may be related to another issue. What is the easiest way to fire "“onXYZ” event in Wix shop and implement an event handler in ‘events.json’ ?

For now I dont want to use StackDriver. I just want to debug a simple event handler so I think Site Monitor should be good enough.