XML-RPC

Please I am finding it difficult to logg on to my self hosted site with my wordpress app. It keeps on telling me that the URL I entered was not found.
I contacted the SUPPORT CHAT enlier but they told me it’s XML- RPC problem and they asked me to forward it here.
My self hosted site is https://www.247coded.com. please I am glad if this issue is being resolved thanks.

The page I need help with: [log in to see the link]