Verification of my domain in debeautify

[icarus1]

Hello there, 

i am curently setting my first shop, unforunatly i am facing a minor probleme. My debeaytify keeps showing my shopify store URL format  as invalid. i dont know if its related to the verification mail sant validate the domain i chose or its another technical issue. when i revisite the domain verification mail sent by Shopify i am met with the folowing message "This link has expired. Check your email for new link / ARV-2". i dont know how to get another verification mail, and i dont know how to get debeautify to accept my shopify URL.

Thank you in advance.