I got a display error message when I want to start using my PVElite software. The error stated as below:

ERROR NUMBER 5333, FATAL ERROR #5333
No active NETHASP server was found. This applies to IPX and NetBios. HASP error code = 15

Can I know what is the problem? And how to solve it? Does this error related with my ESL key installation?

Please advice.
Thanks in advance.