Lay Theme Forum

hi
I'm new at wp. did something wrong downgrading wp in order to solve my customizer empty. I lost everything and had to redo my site Now when I want to enter my licence number I get this message "Reached maximum allowable domains" I don't have any other domain though.
I can connect to my site through Bluehost portal or directly in wp.org, is this the problem?
could you help me
thanks in advance