I have been running a Minecraft 1.14.4 server for quite some time now, but just a few days ago the server started to frequently crash. I tried looking for some solutions online, all to no avail. Below I put the link to the server thread dump. Here are some things I tried beforehand: - Previously I saw the plugins "ImageOnMap" and "Dynmap" in the thread dump, and I tried running the server without them, but it still crashes. - I also tried removing the session.lock file, didn't work. I suspect that it is a problem related to chunk loading, as I see from some other threads posted. All of them said to upgrade to 1.14.4, but my server has always been 1.14.4. https://pastebin.com/NR7A86pp