Integrating Web Parts Into SharePoint

Hi, I have followed your user guides for implementing the Bizagi web parts into SharePoint. Everything was successfully installed up until I try and set the connection for the web parts. When I navigate to the configuration list that has been created automatically and add a new list item I get the following message: The base type 'BizAgi.SharePoint.Layouts.Bizagi.SharePoint.EditPages.Bizagi_WebPartsConfigNewForm' is not allowed for this page. The type BizAgi.SharePoint.Layouts.Bizagi.SharePoint.EditPages.Bizagi_WebPartsConfigNewForm, Bizagi.SharePoint2013, Version=1.0.0.0, Culture=neutral, PublicKeyToken=3cc953c7096d36f1 could not be found or it is not registered as safe. This means that I cannot create the connection that's needed. Many Thanks, Andy