500 Error when using the User Manager after Upgrading to Joomla 2.5

In this tutorial we will show you how to fix the 500 error that occurs with the User Manager after updating to Joomla! 2.5.
The error may look similar to this:

500 - An error has occurred.
Table 'deb44536_joom1.jos_user_notes' doesn't exist SQL=SELECT n.user_id, COUNT(n.id) As note_count FROM jos_user_notes AS n WHERE n.user_id IN (97,86,98,66,85,91,92,101,78,80,103,81,72,69,84,68,89,49,73,48,60,83,71,75,96,51,99,76,70,57,52,88,59,44,100,67,45,46,104,95,63,77,56,65,90,87,55,93,62,79,58,61,53,42,82,102,64,74,50,94) AND n.state >= 0 GROUP BY n.user_id

Fix the 500 Error:

1. Log into your Joomla 2.5 Admin area.
2. Roll your mouse over the Extensions option, then click Extension Manager.
3. Click the Database tab, then click the Fix button.
   

   You will then see a message stating “Database table structure is up to date.”
   

Congratulations, now you know how to fix the 500 error that occurs with the User Manager after updating to Joomla 2.5!