Hi guys, I've been running a server for the last 4 months however two days ago when the server was restarted a player logged on, it then allowed them to move but entities froze, then timed them out after about 20 seconds. Just before the server was restarted i updated my Java SE Runtime Environment to the 8u231 Windows x64 and was messing around in a separate file trying to remove the "this build is outdated" message that occured on server start up. To do this i downloaded latest java, git bash and the buildtools from spigot. I then proceeded to follow instructions and ended up with just a spigot server java file not the spigot and craftbukkit. I soon realised that the bukkit didn't download after a 1.12 update i believe it was. I then tried to add the spigot java file to the server that used to be bukkit as google told me all bukkit plugins worked with spigot. I then started this up fine with no "this build is outdated" message however when i joined to test it, it did the timing out thing described above. As i had no more time to sort it out i switched back to the original file i hadn't messed with (not the copy file) and started it up. However when someone joined that it still did the timing out described and hasnt stopped despite numerous efforts. Here is the crash report for the server: https://pastebin.com/Y9acrUr2 Any help would be greatly appreciated! I would just like to mention that when a slightly older version of the server was relaunched it worked fine however after transferring world files to that it then reverted to the issue presented.