How to solve Xentry [2221-45] No access authorization

One of customer had Xentry error”[2221-45]No access authorization for XENTRY Diagnostics was found on the server,you must contact the User Help Desk.”when running MB SD Connect C4 2016.07V Xentry diagnostic software on Windows 7.
Xentry [2221-45] No access authorization-1
Browse to C:Mercedes-Benz\Xentry\fusoko\eclipse\plugins,delete com.daimler-Xentry.diagservice_1.6_0.201607081047 file.
Xentry [2221-45] No access authorization-2
Problem has been solved.