Product Activation could not write the activation signature

When trying to register my purchased copy of fences I've received this message several times now. I've tried loading and launching the program as Adminstrator and restarting my computer.
If I hit okay to the first error message it has (at one point) said I have had success but then when ever I try to create a fence it tells me my trial version has expired.

 

 I am now receiving another message that says I have hit the max activation count.

Any help you can give would...