Put the summary of the bug you're having here

What I expected to happen was that Minecraft Realms was supposed to be running normally, and when it came to Structure Blocks, it should have kept the structure file I saved for a stage set I made just a few hours ago.

What actually happened was that two of my friends online kept getting kicked off due to the "server forcibly closed by a remote host" error several times within the course of half an hour, and when I logged in myself, I found that the latest version of my progress was reverted back to when I was almost finished the stage set design I made, and the Structure Block save I set up doesn't seem to exist, which will force me to have to finish that mini project again from that point it was left off at.