Title: [Plugin: W3 Total Cache] Admin Page Error / White Screen
Last modified: August 20, 2016
---
# [Plugin: W3 Total Cache] Admin Page Error / White Screen
* [mikeaag](https://wordpress.org/support/users/mikeaag/)
* (@mikeaag)
* [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/)
* Hey There,
* I’ve got W3TC 0.9.2.4 installed on my site.
* I went on it this morning to tweak some minify settings and was unable to access
the admin section for W3TC. All i got was the admin sidebar, and the rest of
the screen was white.
* I turned on debug mode and got the following error – “Fatal error: Call to undefined
method W3_Plugin_PgCacheAdmin::check_rules_legacy() in /htdocs/wp-content/plugins/
w3-total-cache/lib/W3/Plugin/TotalCacheAdmin.php on line 858”
* Having checked this file, i made a small change which basically checks to make
sure the method exists before calling it. This fixed the error and now means
i can access the W3TC admin pages.
* ```
/* Add By Mike*/
if ($this->_config->get_boolean('notes.pgcache_rules_legacy') && method_exists($w3_plugin_pgcache, 'check_rules_legacy')) {
if(@$w3_plugin_pgcache->check_rules_legacy()){
$this->_errors[] = sprintf('Legacy Page Cache rewrite rules have been found. To remove them manually, edit the configuration file (%s) and remove all lines between and including %s and %s markers inclusive. Or if permission allow this can be done automatically, by clicking here: %s. %s', w3_get_pgcache_rules_core_path(), W3TC_MARKER_BEGIN_PGCACHE_LEGACY, W3TC_MARKER_END_PGCACHE_LEGACY, $this->button_link('auto-remove', wp_nonce_url(sprintf('admin.php?page=%s&w3tc_pgcache_remove_rules_legacy', $this->_page), 'w3tc')), $this->button_hide_note('Hide this message', 'pgcache_rules_legacy'));
}
}
/* End Added By Mike */
```
* Could someone shed some light as to what this method actually does, and what
consequences my “fix” will have?
* I would also appreciate any insight as to what might have caused this problem
in the first place.
* WordPress Version – 3.3.1
* My Plugins
- Breadcrumb NavXT – 4.0.2
- BWP Google XML Sitemaps – 1.2.0
- Comment Link Manager – 1.1
- FancyBox for WordPress -3.0.1
- Fast Secure Contact Form – 3.1.4.1
- Newsletter – 2.5.2.6
- Relevanssi – 2.9.14
- Storefront Insights – 1.1
- W3 Total Cache – 0.9.2.4
- WP-PageNavi – 2.82
- WP e-Commerce – 3.8.7.6.2
- WP E-Commerce Weight & Destination Shipping Modules – 4.4
* Thanks in advance
* [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)
Viewing 4 replies - 1 through 4 (of 4 total)
* Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
* (@fredericktownes)
* [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/#post-2610504)
* Sorry for the trouble, this is fixed in the next release. If you like I can update
the development version for testing.
* [ex19](https://wordpress.org/support/users/ex19/)
* (@ex19)
* [14 years ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/#post-2610549)
* I do not have a blank screen, but I do have the intermittent white screen in
the site between each page load. there are numerous threads online about this
issue. I have narrowed it down to this plugin. I saw an earlier thread that was
a year ago. Is there a current fix or method of installing that will cure this
white screen issue? Also, if I had to install the wt3 before the other plugins,
then how would I uninstall it. just deactivate it and do it that way??? or clear
all caches.
* Great plugin, thanks very much
* [ex19](https://wordpress.org/support/users/ex19/)
* (@ex19)
* [14 years ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/#post-2610550)
* By the way, I noticed when I take off the minify settings that this is not happening
as badly. I guess I will attempt to set them one by one maybe just minify certain
things.
* Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
* (@fredericktownes)
* [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/#post-2610573)
* That sounds like a memory issue [@ex19](https://wordpress.org/support/users/ex19/),
what errors are in your error log?
Viewing 4 replies - 1 through 4 (of 4 total)
The topic ‘[Plugin: W3 Total Cache] Admin Page Error / White Screen’ is closed to
new replies.
* 
* [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
* [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq)
* [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/)
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* [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
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## Tags
* [admin error](https://wordpress.org/support/topic-tag/admin-error/)
* [white screen](https://wordpress.org/support/topic-tag/white-screen/)
* 4 replies
* 3 participants
* Last reply from: [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
* Last activity: [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-admin-page-error-white-screen/#post-2610573)
* Status: not resolved