GSX Level 2 Serial number not recognized

[tojdank]

Hi. 

I bought, downloaded and installed GSX Level 2 properly, without antivirus and as an administrator and whether it is FSX or P3D v4, in the Addons Manager, the Serial number is not recognized with a window indicating that's a wrong number.
In addition, I return to FSX or P3D with a frozen screen that forces me to leave the simulator.
 
I tried to reinstall it but it's the same. I have the old GSX enabled in FSX and P3D but Level 2 is still desperately in trial.

What can I do about it? I would like to take advantage of this Level 2.

[virtuali]

Don't use Copy & Paste, since you might get additional invisible character from the email that will make the number wrong, if it's looks right. Type the Serial number manually.

[tojdank]

A thousand thanks. It was the copy/paste that was the mistake. Everything is going well now.

Best regards.