The command [docker push diatt:server1.0] is failing wth [denied: requested access to the resource is denied]

I have already created a repository in https://hub.docker.com/r/mldiatta/repos-01 and have been advised after I create the repository [To push a new tag to this repository] by using the command [docker push mldiatta/repos-01:tagname]

So base on this I run the following commands

c:\containers>docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
diatt server1.0 83f2597de925 22 hours ago 11.7GB
golang 1.14 9f9fca7ea18d 13 days ago 11.7GB
hello-world latest c7f4e41fba3a 13 days ago 251MB

c:\containers>
c:\containers>docker login
Authenticating with existing credentials…
Login Succeeded

c:\containers>
c:\containers>docker push diatt:server1.0
The push refers to repository [docker.io/library/diatt]
63f3865944b7: Preparing 665d0719352f: Preparing fb65b2b53d27: Preparing 1a1bc4331f73: Preparing 53404f42d1dd: Preparing 7ea37999d5ca: Waiting edc2947e8227: Waiting 6150bfe2f7f3: Waiting 5fa6fa85db82: Waiting 3d4b5810a473: Waiting 375556a5baf6: Waiting cea0026d31f8: Waiting a6601a4691e9: Waiting 7bc0b3141ff2: Waiting ebae9e04ae5e: Waiting f358be10862c: Waiting denied: requested access to the resource is denied

c:\containers>

Can someone help me figure out what I am missing base on these images I currently have and the repository I created?

Best Regards
Mamadou Diatta