I recently started a server running FTB Ultimate Reloaded. When trying to join the server, I originally received errors regarding outdated mod versions. I replaced the outdated mods with the versions matching those installed in the client. After refreshing the server and attempting to reconnect, I received the following error: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information. I have attached the complete log to this thread.
2020-04-03-2.log