Board Thread:Bug Reports/@comment-24.87.138.113-20170305044338/@comment-25330335-20170305193922

Your title is undescriptive and unhelpful. You need to make sure that your versions are the same as the server you're joining, not the latest. You need to have 1.7.10 Minecraft, not whatever the latest is now, and a version of forge newer than 1292, both of which you must have for you to be getting as far as you have.

The server is sending you the message with info on what LOTR version it has, not what version you've got. You need to make sure that the version you've got and the version the server's got are the same.