Use the folling command to clone the project to retrieve it with its submodules
git clone --recursive https://github.com/isokissa3/Creation-Backend.git
Note: If you forgot to use the --recursive option when cloning, you could also use the following command to pull the submodules
git submodule update --init --recursive
Do the following commands to fully update your clone to match the repo:
git pull
git submodule update --recursive