Perhaps because you've included your business name rather than your given name. The Artist/photographer should be you, not someone else or a business.
Vale, gracias! Y si es mi nombre de cuenta adobe stock? Lo incluyo también al lado del nombre?
Your real, legal name.
According to the Adobe model release instructions:
The name of the photographer needs to be the same as the Adobe Stock account holder name.
Even though you've chosen a different screen name, I assume that your real name is associated with your Adobe account.