Hi! Sorry you’re having difficulties.
In the section “Settings” / “Licences”, ther’s not any notification.
No field to enter the license key? That is strange. Can you confirm all of your Modern Tribe plugins are up-to-date? If that doesn’t improve things can you try deactivating all other plugins and switching to a default theme – then see if the license key field appears?
Occasionally we’ve had conflicts with other plugins/themes that also use a library called Plugin Update Engine.
It’is the reason why I can insert maximum 4 ID in the facebook plugin? Or is it the maximum number of ID I can insert anyway?
Do you mean is there a limit on the number of Facebook page/group IDs you can automatically import from? If so, there is no limit. You could (if you wished) enter 50 or even 5,000 – but there will be a limit to how many accounts can be processed and checked for new events before the system times out, which vary from server to server.
Does that help?