Cannot signup through any social account

Hi,
I am using SLogin for about 4 months , the SLogin worked fine earlier but now I cannot signup through any social account , it rather redirects me to my facebook page or my site homepage without signing up. But if i have already signed up and add social account then I can login using social accounts

Hello. Provide a link to the website, so we can check your message.

sheenmobility.co.uk , in the offcanvas bar