> For the complete documentation index, see [llms.txt](https://docs.advantys.com/workflowgen-administration-module-reference-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.advantys.com/workflowgen-administration-module-reference-guide/8.3-4/error-messages.md).

# Error Messages

## License

| **Error**                       | **Cause**                                                                                     |
| ------------------------------- | --------------------------------------------------------------------------------------------- |
| Your license has expired        | Your trial period has expired. You must enter a valid serial number to activate your version. |
| A valid license cannot be found | The license file doesn’t match your serial number.                                            |
| License error                   | This operation is not allowed with your license.                                              |

## Security

| **Error**                                  | **Cause**                                                                                                                                       |
| ------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| You are not authorized to view this page   | The user must be a WorkflowGen user or administrator to access the application.                                                                 |
| You are not authorized to access this file | If downloading is secured, only an administrator, a process manager, or a participant with sufficient read rights may access the request files. |