Why has my county Sheriff’s Office returned issued civil summons forms to me indicating that they cannot be served because they are copies?

The U.S. District Court for the Northern District of [State] utilizes electronic civil summons forms based on the summons form format guidelines found at Fed.R.Civ.P. Rule 4(a)(F) & (G) and rules regarding electronic signatures at Rule 5(d)(3). Electronic filing and signatures are provided for in Northern District of [State] Local Rule 5.1(A)(7). All county Sheriff’s Offices located within the Northern District of [State] have been apprised of these rules via a letter from the Clerk of Court.
Issued civil summons forms are available through the Docket Sheet for applicable cases filed electronically by legal representatives. Issuance takes the form of the application of the issuing deputy clerk’s s/name, the typed name of the Clerk of Court, and a digital representation of the court’s seal to the form. The event used to document the issuance is called “Summons Issued”.
County Sheriff’s offices should serve issued summons forms printed from the court’s docket without questioning their format especially if they are delivered to law enforcement with a cover letter indicating that the United States District Court for the Northern District of [State] is an electronic court.