Keil uVision 5 license issue

Hi, I am working with the DA14531 Tiny BLE module and downloaded the Keil uVision 5 software from https://www.keil.com/demo/eval/arm.htm but after installation, when i try to build the target, it shows a license error. I didn't receive any PSN when downloading the software so i am unable to get an another LIC, is there solution to this??