Can't push or pull image after adding a new tag (docker hub)

I’m trying to push a new image to docker hub when adding tags.

Initially the push works ok:

docker build -t myimage .
docker tag myimage myuser/myrepo:latest
docker push myuser/myrepo:latest

but after i add another tag it didn’t let me:

docker tag myuser/myrepo:latest myuser/myrepo:another

i got:

denied: requested access to the resource is denied

it’s the same when i try to pull my repo:

docker pull nicoplw/culo2:latest

i got:

Error response from daemon: pull access denied for nicoplw/culo2,
repository does not exist or may require ‘docker login’: denied:
requested access to the resource is denied

Note that my repo is in docker hub after i initially pushed it.

I tried with

docker logout
docker login

and also with

docker login -u username -p password

i always get "login successfull"

i tried every stackoverflow and docker forums question but i couldn’t make it work. What am i missing here?

thanks!