Ghost Update on Synology Docker

[D_AL]

I’ve using Ghost (5.1.0) installed on Docker container (Synology Docker).
I wish to update to latest version but I have a problem to do that.

Usually I download new image and update an container.
This time Ghost doesn’t star I’ve got a blank page:

What is best way to update docker version of Ghost?

[D_AL]

Oky, my bad.
New container runs on other port