Needs to restart docker after startup

Hello,

Everytime my server restarts I need to issue the following command :

sudo systemctl restart docker

Before doing so, the docker daemon is up and running without any container (sudo docker ps -a displays none).
After restart docker, all my containers are booting up and visible through the WebUI or sudo docker ps -a…

Do you know why ? Should I add some delays in the service startup script ?

Thank you