Activation count exceeded (3/0)

Hello, we have extended the subscription for 6 pcs DraftSight Standard Cleverbridge reference number: 436035924. The product was successfully reactivated on 5 PCs. An error appears on 1 pc during activation: "Activation transaction failed: Activation count exceeded. Deactivate a license from another computer and retry. Visit My.SolidWorks for more information. (3/0)".