Page Visitors not recognized

Hi All

I installed Mautic on a Docker instance and did do all the cors setting.
I see that the page is calling mtc.js and mtc/event
Respond of the event call :{“success”:1,“id”:null,“sid”:null,“device_id”:null,“events”:[false]}

I do not get any contacts or visits in Mautic.
What should i check?

Thx