title: connect internal only until freed oracle sql developer
body: <p>Hi im trying to connect to oracle server db using oracle Sql developer
  Im getting error as</p>
  
  <blockquote>
    <p>connect internal only until freed</p>
  </blockquote>
  
  <p>Please let me know how to solve this error.</p>
  
  <p>Thankyou</p>