Domain Alias - reversal

Can someone assist please,

after creating a domain alias (xxx.domain.com) I have reversed it, deleted the domain, all DNS zone entries but the main website still redirects to a default Cyberpanel page inside the alias folder (home/domain.com/xxx.domain.com) instead of the main website (home/domain.com/public_html)

Have restarted all services - also deleted the NS zone / redirect at domain level.