Facebook: buy reposts for an event
The "Facebook: share event" ad campaign allows you to increase your event reach on Facebook. Users will invite friends, share in Messenger or in a post about your event.
The link to the event page on Facebook may look like this:
https://www.facebook.com/events/513301129071555/
Copy the link as shown in the picture.

Log in to your IPweb account. In the menu on the left, click "Promotion" - "My campaigns" - "Add an advertising campaign" - "Actions on social networks" - "Facebook" - "Facebook: share event".

Enter the link to the event page and the number of reposts per day.
How to set up the geography of the issuance and other parameters of the advertising campaign tell here.