Failed to Synchronize registry data from server, closing connection

Hi, please share your client log:

Share your client log

1. open your minecraft installation path

(enter %appdata%/.minecraft in the file explorer )

2. open the logs folder

3. open the "latest" or "latest.log" file with a text editor

4. copy and paste the content of the file to https://mclo.gs/

5. send the link here

Are you sure that you installed the same mods and version of the mods on your client and server?

Can you try to see if it works when you delete the config folder on your Minecraft?