Hubspot integration with Brevo

Hello, I’m new in these matters, and I need help.
We recently integrated Hubspot with Brevo, everything OK, but we wanted to track email.events … And we couldn’t, no email activity in the contact panel was there (if the email was opened, or clicked or if has a bounce).
No activity at all was shown in Hubspot.
How can we solve the problem?
Thanks for your help.