Offline liscensing Thingworx 8.3.0 failed " ignored_license_capability_response"

We used Thingworx 8.3.0 build a DEMO at a windows Server 2012 R2 VM three years ago. Recently, i try to renew the license, but after deleted the file " sucessful _license_capability_response.bin" in the ThingworxPlatform folder and then restart the service " ThingWorx Server", there was no " licenseRequestFile" generated.  In order to get the Device ID, i used the older snapshots of this VM, and then got the license to licensing theDEMO. According the licensing Guide, i do step by step, the .bin

file was renamed " ignored_license_capability_response".