about error message when install e prime "key too long for register"

[kebir oussama]

  Hi,
   
  I encountered a problem when I tried to install e prime; an error message appears and contains information that can be understood like  "key too long for register"
   
   
  is there a solution ?
   
  Oussama KEBIR
  Hopital Razi
  Tunisia

 		
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