Google defines the categories as follows:

Crime: Page content references the requester in connection with crimes. For example, content may relate to the requester’s conviction, witness testimony, or victim status.
Name not found: No reference to the requester's name can be found in the content page at the the provided URL. However, the individual’s name may appear in the URL.
Insufficient information: Page content was not categorized because Google required more information to process the request. For example, the requester supplied an incomplete URL or did not provide a reason for requesting a URL be delisted.
Miscellaneous: Page content does not fit into any of the other content categories.
Professional information: Page content contains a requester's work address, contact information, or general information about their business activities.
Professional wrongdoing: Page content references a criminal or court activity—crimes, acquittals, or exonerations—specifically in relation to a professional role.