Hello,
To prevent server overload, and attacks by direct IP access, we have just blocked their access.
To view your website before making your change of DNS, for security reasons, we do not allow access by IP, please use this technique :
https://support.yoorshop.hosting/knowledgebase/3411/How-to-preview-a-website-on-shared-IP-site-before-migration.html
YOORshop Team
Monday, March 26, 2018