VS C# ActiveX license error

Hi guys... I have a problem in my C# project. Normally it was running but now my project has a license error. when I ran main form, telling me "you must have a license to use ActiveX control"
I dont make anything upgrade/improving or else, this error suddenly occured
Although my research did not find a solution

Below error list
AxHost.CreateInstance()
AxHost.GetOcxCreate()
AxHost.TransitionVpTo()
AxHost.CreateHandle()
AxHost.EndInit()

now What should I do for it :(
I waiting for your answers, thanks in advance....

Did you run a registry cleaner of some kind? Sounds like the registration of the component has gotten scrogged.

Why are you using an ActiveX control in a C# project anyway?

-Max