Do you have an old version of the Skinr module installed? Older version are particularly prone to causing this problem.
In short this problem is caused by a race condition when two separate requests are trying to rebuild the theme information in the database from all the individual .info files.
This was fixed by introducing a lock there to prevent concurrent rebuilds of the theme data, and you'll need Drupal 6.24 or newer to prevent these errors.
Here's the relevant change if you are interested: http://drupalcode.org/project/drupal.git/commit/bf4c9bf97f67c64450680e152258...
-Mike
Ms. Nancy Wichmann wrote:
I am getting a bunch (literally thousands) of the following errors and they come in groups. While the Zen Classic theme is installed, it is not the one in use - it's not even enabled. Any ideas?
/Duplicate entry 'sites/all/themes/zen/zen_classic/zen_classic.info' for key 'PRIMARY' query: INSERT INTO system (name, owner, info, type, filename, status, throttle, bootstrap) VALUES ('zen_classic', 'themes/engines/phptemplate/phptemplate.engine', 'a:16:{s:4:"name";s:11:"Zen Classic";s:11:"description";s:97:"Zen sub-theme based on <a href="http://www.oswd.org/design/preview/id/2634%5C%22%3EDeliciously Blue</a>.";s:10:"screenshot";s:47:"sites/all/themes/zen/zen_classic/screenshot.png";s:4:"core";s:3:"6.x";s:10:"base theme";s:3:"zen";s:11:"stylesheets";a:2:{s:3:"all";a:7:{s:18:"layout-garland.css";s:51:"sites/all/themes/zen/zen_classic/layout-garland.css";s:17:"html-elements.css";s:50:"sites/all/themes/zen/zen_classic/html-elements.css";s:9:"icons.css";s:42:"sites/all/themes/zen/zen_classic/icons.css";s:15:"zen-classic.css";s:48:"sites/all/themes/zen/zen_classic/zen-classic.css";s:12:"messages.css";s:45:"sites/all/themes/zen/zen_classic/messages.css";s:14:"wireframes.css";s:47:"sites/all/themes/zen/zen_classic/wireframes.css";s:7:"zen.css";s:40:"sites/all/themes/zen/zen_classic/zen.css";}s:5:"print";a:1 :{s:9:"print.css";s:42:"sites/all/themes/zen/zen_classic/print.css";}}s:23:"conditional-stylesheets";a:1:{s:5:"if IE";a:1:{s:3:"all";a:1:{i:0;s:6:"ie.css";}}}s:7:"regions";a:8:{s:4:"left";s:12:"left sidebar";s:5:"right";s:13:"right sidebar";s:6:"navbar";s:14:"navigation bar";s:11:"content_top";s:11:"content top";s:14:"content_bottom";s:14:"content bottom";s:6:"header";s:6:"header";s:6:"footer";s:6:"footer";s:14:"closure_region";s:7:"closure";}s:8:"features";a:10:{i:0;s:4:"logo";i:1;s:4:"name";i:2;s:6:"slogan";i:3;s:7:"mission";i:4;s:17:"node_user_picture";i:5;s:20:"comment_user_picture";i:6;s:6:"search";i:7;s:7:"favicon";i:8;s:13:"primary_links";i:9;s:15:"secondary_links";}s:8:"settings";a:10:{s:17:"zen_block_editing";s:1:"1";s:14:"zen_breadcrumb";s:3:"yes";s:24:"zen_breadcrumb_separator";s:8:" :&#58; ";s:19:"zen_breadcrumb_home";s:1:"1";s:23:"zen_breadcrumb_trailing";s:1:"0";s:20:"zen_breadcrumb_title";s:1:"0";s:17:"zen_classic_fixed";s:1:"0";s:10:"zen_layout";s:22:"border-politics-liquid";s:20:"zen_rebuild_registry";s:1:"0";s:14:"zen_wireframes";s:1:"0";}s:7:"version";s:7:"6.x-1.0";s:7:"project";s:3:"zen";s:9:"datestamp";s:10:"1234555897";s:7:"scripts";a:1:{s:9:"script.js";s:42:"sites/all/themes/zen/zen_classic/script.js";}s:3:"php";s:5:"4.3.5";s:6 :"engine";s:11:"phptemplate";}', 'theme', 'sites/all/themes/zen/zen_classic/zen_classic.info', 0, 0, 0)/ in //home/thepolit/public_html/modules/system/system.module/ on line /821/.
/*Nancy*/
Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.