Adobe Firefly error 403012 - unavailable in supported region

Hello.
I am unable to access Adobe Firefly. 

I receive error 403012 with the message:
“This site is unavailable from your geographic region.”

This is a personal Adobe account, not an organization-managed account.
My current public IP is detected as Belgium, and Belgium is a supported Adobe Firefly region. I have also tested connections through other supported European countries, including the Netherlands. 

Please check:

1. which country or region Adobe Firefly is detecting for my current connection;
2. which country or region is associated with my Adobe ID;
3. whether there is any incorrect regional restriction on my account;
4. why error 403012 is being returned while using a supported region.

I can successfully sign in to my personal Adobe account, but immediately after opening Firefly I receive the regional access restriction shown in the attached screenshot. The separate 403012 error is also attached.

I would appreciate specific information about what is causing the regional block and what needs to be changed to restore access. 

Thank you.