My multichart was working fine until now. And the activation process worked fine in January but :
Suddenly I got an error message asking me to register again. Then when I register I get the following error message :
"Incorrect Authorization Data"
I don't understand , I can not even open Multicharts .
I entered the exact same information :
Registration name and Registration code but I still get the same error message : " incorrect Authorization Data"
Do you have a idea ? a solution ?

Thank you
Emmanuel Evrard