WebGE 1.0.5 is a fully functional version of WebGE which can be executed in a shared server.
It corrects minor issues of previous versions and adds version name in the footer of the interface.
The easiest way to run WebGE is, after installing docker and docker-compose, creating a docker-compose.yml file using the example from GitHub and run the corresponding docker commands to pull, and run the compose.
Remember to stick to this version by editing the line corresponding to the WebGE image:
image: jmcolmenar/webge:1.0.5
More running details on WebGE GitHub home page.