FATAL ERROR WHEN LOGGING INTO MY CHAR

I can't log into one of my charactors with a error keeping popping out "fatal error in Metadata/Monsters/TerracottaGuardians/TerracottaGuardiansSceptreAmbush_@38: Numbers of shared states is different on client and server! Delta: 69". I tried have my client repaired but it is still the same!! All other charactors are just fine.