my file realmlist has messed up can anyone tell me the code that is meant to be in the file because i cannot log on...

Private servers are evil and dark beings who will eventually leech your soul and suck you dry.

But on a bright side, the file should look like this:
set realmlist eu.logon.worldofwarcraft.com
set patchlist eu.version.worldofwarcraft.com

I recommend you modify it to reflect that and don't ever change it again ;)

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You are NOT repaired.