I'm having problems accessing my forge server after changing the modpack. I checked several times if all the files on the server are compatible with the client, and there doesn't seem to be anything wrong, but the error persists. I looked for this error on the internet and found no solution that made sense. On the client, the error was "Failed to synchronize registry data, closing connection", and on the server console, it only gave "lost connection: Disconnected". If anyone knows what it is about, I would be very grateful.
Ps: The base modpack and additional mods were all downloaded by curseforge, and the forge version, from the official website.