Thank you for your support.
However, offline activation still failed.
The contents of "activation.xml" are as follows,
and it still shows "License cannot be generated, it has already expired."
I would appreciate any advice on additional troubleshooting steps.
```xml: activation.xml
<?xml version="1.0" encoding="UTF-8" ?>
<ResponseHeader>
<VersionNumber>1</VersionNumber>
<ResponseType>FAILURE</ResponseType>
<RequestSequenceNumber>10</RequestSequenceNumber>
<RequestHash>9E6B420F28F0F9C76D6E44B2108A35D7CF94AABF</RequestHash>
</ResponseHeader>
<ResponseData>
<ResponseReason>DENIED</ResponseReason>
<ErrorCode>License can not be generated, it is already expired.</ErrorCode>
</ResponseData>
<Signature>C652403DBD48EB68DCF2D781A737EEEB9B2DCE16</Signature>
<SignatureVersion>1</SignatureVersion>
</Response>
```
I have attached the formatted XML file and the results of checking the License Lists status. Please review these as well.