on clicking wordpress page to update it redirects to main index page

on clicking wordpress page to update it redirects to main index page…
my domain is https://www.wedo.ae bt i creatd a subdomain lik this https://www.cards.wedo.ae means in cards directory i installed wordperss nd created page then i edit page nd click to update ,its rather then go to same edit page,it jumps to that link which is main page https://www.cards.wedo.ae
Please share any solution regarding this ots getting headche thx in advance !