Tracker Errors on "My Recent Posts"

Anytime anyone including Anonymous users click on the link in Tracker for "My Recent Posts" get these errors in the logs -

array_key_exists() [<a href='function.array-key-exists'>function.array-key-exists</a>]: The first argument should be either a string or an integer in /path/drupal-6.15/sites/mysite.com/modules/views/includes/view.inc on line 1286.

mysql_real_escape_string() expects parameter 1 to be string, object given in /path/includes/database.mysql.inc on line 321.

Illegal offset type in /path/mysite.com/modules/views/includes/view.inc on line 1290.

Illegal offset type in /path/mysite.com/modules/views/includes/view.inc on line 1325.

Illegal offset type in isset or empty in /path/mysite.com/modules/views/views.module on line 698.

This is with Drupal 6.15 and with the drupal "core" tracker.

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