OK lets try this.
1) Make a backup of your site. (
this is not tested on a global scale, only on a test site )
2) Upload the attached file to your admincp folder.
3) Then enter this URL in your browser:
Code:
http://www.YOURSITE.com/admincp/pm_counter_fix.php
Make sure you replace,
http://www.YOURSITE.com with the URL to your site, and
admincp with your admincp folder if you have renamed it.
And then let me know if that works.