title: how to shift osticket from one server to another without reinstalling?
body: <p>I am running osTicket on server and now i need to migrate the server. So i took backup of files and database on my localhost and trying to run it for test but it is giving me error of 500 and descripton is </p>
  
  <blockquote>
    <p>PHP Fatal error:  Can't inherit abstract function AuthenticatedUser::getId() (previously declared abstract in BaseAuthenticatedUser) in /var/www/html/ostickets/upload/include/class.auth.php on line 26</p>
  </blockquote>
  
  <p>I am testing it on local so that after successful migration i don't want to loose any of my data. please guide. </p>