skullg

Hi I have wordpress installed on my domain at https://mydomain.com and my whmcs is installed on https://mydomain.com/billing Everything was working fine but suddenly now im getting 404 pages when i try to view plans or try to visit any whmcs page. and when i try to access whmcs admin area it redirects the link tohttps://mydomain.com/billing/admin/login.php?redirect=%2Fbilling%2Fadmin%2F