New Facebook pages may require re-assigning permissions in a different section of your Facebook account. If your permissions were previously assigned through Facebook Business Manager, you will need to re-assign these permissions in the User Interface.
To do this, log into your Facebook Business Manager.
Note: Before completing any following steps, make sure that you've assigned a different Facebook profile as an Administrator for this page.
1. Remove the Facebook profile that you're trying to use with dlvr.it.
2. Log into the current Facebook profile of the assigned Admin.
3. Click on the correct Facebook page
4. Click on Settings
5. Click on Page Roles
6. Assign the Admin permission to the correct Facebook profile.
7. Navigate back to dlvr.it and retry adding the social