License doesn't work on Catalina

Hello,

My license doesn’t work on Catalina on a MacBook Pro…
I’ve only used it on another MacBook Air !
It should work ! 2 computers are allowed.
If you have got any suggestions, l’ll love them :wink:

Ted

Please make sure that you’ve entered both the Serial Name and the Serial Number as shown in your order confirmation e-mail. You can use Copy/Paste to make sure that they’re entered exactly or click the Serial Link to have SpamSieve enter them automatically.