licence activation does not fit the setup file downloaded from Toon Boom Website

Hi everyone.

I received, from my company, a key for Toon Boom Story Board Pro 5

I downloaded the setup file from Toon Boom’s Website.

( The only version available from that website is the 5.5 )

I activated Toon Boom Story Board Pro via the licence manager.

Unfortunately, it seems that SBP refuses to run correctly. It always stops at the loading screen.

The message is :
" Unable to find a valid license for this application "

Do you have any idea why I get that message ?
Is there a solution ?

Thank you in advance.