I have a server that was in 1.16.5, but converted it to 1.17 today. After this the server did not start. I contacted my server hosting program and they said to disable all the plugins. I did this and the server is not starting. I contacted my server hosting program again and they said that it is a problem with 1.17 spigot, and that spigot is not liking my world. Has this happened to anyone else?