title: DataBase Error InnoDB: cannot calculate statistics for table
body: <p>While checking the error logs in my wordpress site I would get the following for the mysql logs.</p>
  
  <pre><code>161120  6:41:58  InnoDB: cannot calculate statistics for table databasename/wp_wfHoover
  InnoDB: because the .ibd file is missing.  For help, please refer to
  InnoDB: http://dev.mysql.com/doc/refman/5.5/en/innodb-troubleshooting.html
  161120  6:41:58 [ERROR] MySQL is trying to open a table handle but the .ibd file for
  table databasename/wp_wfHoover does not exist.
  Have you deleted the .ibd file from the database directory under
  the MySQL datadir, or have you used DISCARD TABLESPACE?
  See http://dev.mysql.com/doc/refman/5.5/en/innodb-troubleshooting.html
  </code></pre>
  
  <p>What is the problem here? My site is hosted on an ubuntu server using apache2.<br>Thanks in advance </p>