Welcome, @lcs
For this question
You can share more details about your server and OS and we can try to help more.
Then for this question
You had this same trouble with the Docker Galaxy? The updated version? That would be very odd but we can troubleshoot it more. This is the version that is expected to be easier for new administrators to use, and a good choice for scientists who are willing to learn some server administration since so much is pre-configured. Remember that the Docker Galaxy has a dedicated admin guide, so be sure to follow that when first getting things started up – meaning, the instructions are different than the simple get-galaxy guide.
I’ll link these resources so you can review. Maybe try the Docker version again (starting completely over) to see if that is enough, then we can follow up more with your new questions and some clarification about the environment. 