I am having an erro on Looging out .

The error generated is as under:

"Notice: Undefined property: cache in e:\program files\easyphp\www\cms\includes\bootstrap.inc on line 339

Fatal error: Call to undefined function: drupal_set_html_head() in e:\program files\easyphp\www\cms\sites\default\modules\taxonomy_assoc\taxonomy_assoc.module on line 58

Notice: Undefined property: cache in e:\program files\easyphp\www\cms\includes\session.inc on line 62 "

Could you guide me in the right direction to resolve this issue.

Rhanks

Garry