You have enabled "Extended Log" as a tracking option to a security rule.

 Extended Log is a tracking option that enables administrators to see additional information about the traffic that matches a security rule, such as data type, file name, file size, etc. However, to see any data type information, Content Awareness must be enabled on the Security Gateway. Content Awareness is a blade that inspects files based on their type, size, name, and data. Content Awareness is required for Extended Log to work properly3. References: Check Point R81 Content Awareness Administration Guide