Can not access dind through public ip address

[0YHR0]

As the instruction says, I set the public IP address in the .env file. But when I use the example: MyTinyToDo_MySql Docker to create an instance, it shows the error that can not connect to the publicip:2222.

We are currently working on a research project on Modeling information governance system using openTOSCA. We would like to get your help on this issue.
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