Are you using titanium? Only titanium works (or rather, is supported) on this emulator. If it is unable to identify the opcodes, you either have a newer/older client, or you have a corrupt patch_titanium.conf file. Either way, redownload the binaries for the server you are running, if you have custom bins, just replace the .conf files.
See if that helps, sometimes not everything on the internet works like we want it to.
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