Lab 3.2 step 29 No such image: simpleapp:latest

Hello,

I have stuck on this lab everything was working fine until this step also seems on the previous step I have downloaded less than expected in the notes by the pull request in step 28. Please help is the image really missing?

step 28.

student@master:/localdocker$ sudo docker pull 10.98.38.59:5000/tagtest
Using default tag: latest
latest: Pulling from tagtest
da7391352a9b: Pull complete
14428a6d4bcd: Pull complete
2c2d948710f2: Pull complete
Digest: sha256:4e4bc990609ed865e07afc8427c30ffdddca5153fd4e82c20d8f0783a291e241
Status: Downloaded newer image for 10.98.38.59:5000/tagtest:latest
10.98.38.59:5000/tagtest:latest

step 29.

student@master:/localdocker$ sudo docker tag simpleapp 10.98.38.59:5000/simpleapp
Error response from daemon: No such image: simpleapp:latest

Below you can find all my steps which were successful so far.

=====

lab 3.2 from step 23

Step 23
student@master:/localdocker$ sudo systemctl restart docker.service
student@master:/localdocker$ sudo systemctl status docker.service | grep Active
Active: active (running) since Fri 2020-11-27 16:24:08 UTC; 23s ago

Step 24
student@master:/localdocker$ sudo docker pull ubuntu
Using default tag: latest
latest: Pulling from library/ubuntu
da7391352a9b: Pull complete
14428a6d4bcd: Pull complete
2c2d948710f2: Pull complete
Digest: sha256:c95a8e48bf88e9849f3e0f723d9f49fa12c5a00cfc6e60d2bc99d87555295e4c
Status: Downloaded newer image for ubuntu:latest
docker.io/library/ubuntu:latest

student@master:/localdocker$ sudo docker tag ubuntu:latest 10.98.38.59:5000/tagtest

Step 25

student@master:/localdocker$ sudo docker push 10.98.38.59:5000/tagtest
The push refers to repository [10.98.38.59:5000/tagtest]
f6253634dc78: Pushed
9069f84dbbe9: Pushed
bacd3af13903: Pushed
latest: digest: sha256:4e4bc990609ed865e07afc8427c30ffdddca5153fd4e82c20d8f0783a291e241 size: 943

Step 26
student@master:/localdocker$ sudo docker image remove ubuntu:latest
Untagged: ubuntu:latest
Untagged: ubuntu@sha256:c95a8e48bf88e9849f3e0f723d9f49fa12c5a00cfc6e60d2bc99d87555295e4c
student@master:/localdocker$

Step 27

student@master:/localdocker$ sudo docker remove 10.98.38.59:5000/tagtest
docker: 'remove' is not a docker command.
See 'docker --help'

student@master:/localdocker$ sudo docker image remove 10.98.38.59:5000/tagtest
Untagged: 10.98.38.59:5000/tagtest:latest
Untagged: 10.98.38.59:5000/tagtest@sha256:4e4bc990609ed865e07afc8427c30ffdddca5153fd4e82c20d8f0783a291e241
Deleted: sha256:f643c72bc25212974c16f3348b3a898b1ec1eb13ec1539e10a103e6e217eb2f1
Deleted: sha256:9386795d450ce06c6819c8bc5eff8daa71d47ccb9f9fb8d49fe1ccfb5fb3edbe
Deleted: sha256:3779241fda7b1caf03964626c3503e930f2f19a5ffaba6f4b4ad21fd38df3b6b
Deleted: sha256:bacd3af13903e13a43fe87b6944acd1ff21024132aad6e74b4452d984fb1a99a
student@master:/localdocker$

Step 28

student@master:/localdocker$ sudo docker pull 10.98.38.59:5000/tagtest
Using default tag: latest
latest: Pulling from tagtest
da7391352a9b: Pull complete
14428a6d4bcd: Pull complete
2c2d948710f2: Pull complete
Digest: sha256:4e4bc990609ed865e07afc8427c30ffdddca5153fd4e82c20d8f0783a291e241
Status: Downloaded newer image for 10.98.38.59:5000/tagtest:latest
10.98.38.59:5000/tagtest:latest

Step 29
student@master:/localdocker$ sudo docker tag simpleapp 10.98.38.59:5000/simpleapp
Error response from daemon: No such image: simpleapp:latest
student@master:/localdocker$ sudo docker tag simpleapp 10.98.38.59:5000/simpleapp
Error response from daemon: No such image: simpleapp:latest
student@master:/localdocker$