Hi, Alex.
Please check the [ticket creation article](https://support.gluu.org/docs/user-guide/how-to-ask/), especially the part about gathering clues from logs there, and provide a more complete description of your issue. It's not clear where you installed Gluu at (a local vm? Some VPS on the Internet?), how network infrastructure that connects your machine (where your browser runs) and Gluu's host looks like, what do you get when accessing the page, etc. We can't proceed with this little data.
Please also run `# dpkg -l | grep gluu-server` outside of the container and provide output here.