Board Thread:Bug Reports/@comment-26714774-20150716221755/@comment-27723099-20150716234958

As I said: The modpack has the wrong mod version. Tell the modpack author to update the modpack or do it yourself:
 * 1) In the start menu, type in "%appdata%" and press enter. This should open the folder '.../AppData/Roaming'
 * 2) Navigate to .technic/modpacks
 * 3) Open the folder of the modpack and go to 'mods'
 * 4) Remove the LOTR mod (or move it somewhere else)
 * 5) Download the new mod version here and put it into the folder

As I said, you might not be able to play on some other servers because they still use the old mod version.