How to fix Star DAS/Xentry “No access authorization code” error?

A small part of MB Star DAS/Xentry users got “No access authorization code” error when operating Xentry/DAS activation, shown as follows.
There are 2 possible reasons and solution:
The first possible reason: You haven’t ctivate Xentry and DAS. You are required to send your supplier HW-ID,Lan ID and APP ID for Xentry activation and HW-ID for DAS activation, please follow the user guide to active Xentry and DAS:

The second possible: You activated successfully, but when you start the computer, you get the same error. Then please do by following steps.
1). Go to “C/Documents and Setting/All Users/Application Data/LicDir”
2). Copy “Lic_Key_2.dat” and paste it.
3). Setting the folder as “Show hidden files and folders”.
4). Rename “copy file Lic_Key_2.dat” as “Lic_Key_2.x4711”.
5). Again input the password of Xentry, and save it.
6). Test the Xentry software