i migrate an application to a cloud server, and there are some functions, that dont work.

The application is developed in .net 1.1, and uses dbcombo for some textfields etc. now that i migrate that application when i am trying to use a some of its functions i get the error below:

DbCombo error: You have entered an invalid registration key. The registration key you entered is limited to the following domains: 'domain1.eu', 'www.domain1.eu' and 'localhost'. The current domain is 'domain2'. Please see www.dbcombo.net for a valid key. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: j+b: DbCombo error: You have entered an invalid registration key. The registration key you entered is limited to the following domains: 'domain1.eu', 'www.domain1.eu' and 'localhost'. The current domain is 'domain2'. Please see www.dbcombo.net for a valid key.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[b: DbCombo error: You have entered an invalid registration key. The registration key you entered is limited to the following domains: 'domain1', 'www.domain1.eu' and 'localhost'. The current domain is 'domain2'. Please see www.dbcombo.net for a valid key.] j..ctor(String registrationKey) +3425
Cambro.Web.DbCombo.DbCombo.a() +126
Cambro.Web.DbCombo.DbCombo.b(Object A_0, EventArgs A_1) +11438
System.Web.UI.Control.OnPreRender(EventArgs e) +67
System.Web.UI.Control.PreRenderRecursiveInternal() +62
System.Web.UI.Control.PreRenderRecursiveInternal() +125
System.Web.UI.Control.PreRenderRecursiveInternal() +125
System.Web.UI.Page.ProcessRequestMain() +1499

-------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:1.1.4322.2490; ASP.NET Version:1.1.4322.2494
Because i never used that before, can anyone tell me where can i obtain the key (the website www.dbcombo.net has nothing about that) or what else should i do in order to make dbcombo functional to the other domain?