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[Plugin: W3 Total Cache] How to Uninstall with no Admin Panel (57 posts)

  1. auz1111
    Member
    Posted 4 years ago #

    Hi, I am trying to figure out how to get my WP administration panel back. When visiting the site http://mysitename.com/wp-admin the screen is blank. I have tried un-activating all the plugins through phpmyadmin, but the white screen persist. I have reason to believe it may be the W3 Total Cache plugin.

    How can I uninstall this plugin manually? I have tried deleting all the files in the plug-in folder as well.

    The WWW version of my site works fine. The non WWW version shows a blank screen. Trying to access the administration panel from either route retrieves a blank screen.

    Any ideas would be very welcomed as we can't edit the site like this. (

    Thanks!

  2. Frederick Townes
    Member
    Posted 4 years ago #

    I'm sorry (and surprised) to hear that this happened. There must be some conflict with another plugin you are running.

    In any case, make sure to also remove: advanced-cache.php, db.php, w3tc/, w3-total-cache-config.php from wp-content/ in addition to wp-content/plugins/w3-total-cache/.

    And if you have a staging server with the exact same configuration I would be curious to find out what the conflict is.

  3. derker
    Member
    Posted 4 years ago #

    i am trying to remove w3 total cache from my site and it says i don't have permission to do so... wtf? Frederick could you possibly please enlighten on how to remove... thanks...

    heres the error:

    550 Could not delete db.php: Permission denied

    and i changed the file permissions all over the place... any hellp much appreciated

  4. Frederick Townes
    Member
    Posted 4 years ago #

    Is there a really a need to curse? Those permission issues have nothing to do with W3TC.

    W3TC creates files owned by the same user + group as your web server (standard operating procedure), so if your FTP or SSH user doesn't have access to remove them and you cannot change the ownership/permissions yourself, contact your web host for assistance.

  5. kingofstlouis
    Member
    Posted 4 years ago #

    My site wasn't updating on the frontend. My RSS feeds weren't working right. Low and behold, it was this very issue. I followed your removal tip and it fixed the site. Excellent, thank you!

    I'm sorry (and surprised) to hear that this happened. There must be some conflict with another plugin you are running.

    In any case, make sure to also remove: advanced-cache.php, db.php, w3tc/, w3-total-cache-config.php from wp-content/ in addition to wp-content/plugins/w3-total-cache/.

    And if you have a staging server with the exact same configuration I would be curious to find out what the conflict is.

  6. Frederick Townes
    Member
    Posted 4 years ago #

    It would be useful to find out why the remaining 7% of users are users having issues. If anyone has constructive feedback it's well appreciated.

  7. blog_angel
    Member
    Posted 4 years ago #

    Frederick,

    I had similar issues when I installed w3tc. I ended up with the horribly frightening white screen of death where my admin panel should have been. I used Jared Hienrich's post: How to troubleshoot WordPress “White Screen” of Death to recover. I also had to reload several times and remove files as prompted by missing file messages that came on the browser window.

    I still have some of the w3tc files installed, but my site finally came back. I have not yet tried to reinstall the plugin, but I very much want to. I will remove all plugins to an temporary folder and leave "plugins" empty and try again.

    Then I will reinstall each plugin, one by one until I find out which of them is the evil culprit.

    Will let you know.

  8. Frederick Townes
    Member
    Posted 4 years ago #

    Ok, but evil is a strong word. There are 9000+ plugins and no one can promise compatibility with them all for the same reason.

  9. rounak
    Member
    Posted 4 years ago #

    i too had the same problem this is the worst plugin i have ever seen and this guy fredericktownes is just full of attitude and always shows this figure, he just praise himself and his plugin.
    my blog is totally fucked up after using this plugin.
    he is not willing to help without money.

    this plugin wasted my years hard work.
    now i am not gonna leave this person.
    i am finding all options and talking to my lawyer and i am gonna show him a real bad time now.

  10. Chukwudi Emmanuel Udegbunam
    Member
    Posted 4 years ago #

    @Rounak: In my own experience, Frederick has been very helpful all through even without me paying him a dime. You're talking about calling your lawyer and stuff but you seem to forget the fact that every FREE PLUG-IN comes with its perks and some just don't work.

    I've a had a plug-in mess up my site but I was fortunate enough to have a backup of my database which saved the day.

    I hope you can recover your blog soonest and please cultivate the habit of backing up your database EVERYDAY as shit can happen @ any time.

    Cheers

  11. Frederick Townes
    Member
    Posted 4 years ago #

    @Rounak contacted me for a "request for quote" via my web site; a quote was provided. Had he submitted a bug submission he would have received support as @strictlyonlinebiz testified above.

  12. jmorrow
    Member
    Posted 4 years ago #

    I actually liked this plugin until I upgraded to WordPress 3.0.

    I've been having some issues with slow loading. Dreamhost told me that there are known compatibility issues with W3 Total Cache and WordPress 3.0. Since this is the "real bad time thread" I thought I would join in. I'm not sure if my problems are related to Dreamhost which I suspect or W3 Total Cache which worked fine for me prior to Wp 3.0.

  13. Frederick Townes
    Member
    Posted 4 years ago #

    I'm not sure if users realize that WP 3.0 was a significant change in how WordPress works under the hood. Anyway, v0.8.5.2 of W3TC was never flagged as compatible with WP 3.0, still many users upgraded anyway. If you wish to continue using W3TC, v0.9 (the development version) is quite stable, compatible with WP 3.0 and available here: http://wordpress.org/extend/plugins/w3-total-cache/download/

  14. ro.bert.d
    Member
    Posted 4 years ago #

    I was facing with same issue during update to 0.9 (seems is beta) and receive blank screen of death.

    A good practice to locate problems try to setup WP_DEBUG into wp-config.php
    define('WP_DEBUG', true );

    Problem was located into /var/www/xxx/wp-content/plugins/w3-total-cache/lib/W3/Plugin/TotalCache.php when try to using DOMDocument

    at line:
    $dom = new DOMDocument();

    That seems was missing on my production server and from here was the fun begin.

    I suggest as required modules to be checked when plugin is installed and be sure all requirements are accomplish.

    Happy caching!

  15. Frederick Townes
    Member
    Posted 4 years ago #

    Thanks I realize that. Actually, the issue is the module there behaves differently in different minor versions of PHP, so I changed the implementation completely.

  16. Keating
    Member
    Posted 4 years ago #

    Frederick, Firstly, I love this plugin - it is by far superior to WP-SC. I have one issue though, which I hope you can resolve for me. I recently deactivated W3TC after it wasn't compatible with WP3.0. During this time, I switched server. Now that W3TC is back and compatible, I tried to run it again, but when I go to activate it through the Plugin screen, it's saying it cannod CHMOD to /home/path/etc - but this path is from my OLD server and the current server path is very different! I have deleted W3TC many times, but still problem persists. Is the path called from the database?

  17. burnedbrass
    Member
    Posted 4 years ago #

    After removing: advanced-cache.php, db.php, w3tc/, w3-total-cache-config.php from wp-content/ in addition to wp-content/plugins/w3-total-cache/

    my problem did not go away immediately. I deleted the additional W3 hooks (references)that were in /wp-content and my problem is now resolved.

  18. Frederick Townes
    Member
    Posted 4 years ago #

    @spunko2010, I could not reply to your email, it bounced:

    Yes, If you update "Store uploads in this folder" in /wp-admin/options-media.php to any other value and save, and then change it back to the correct value and save again that will update the database.

  19. supersnapp
    Member
    Posted 4 years ago #

    I am having the same problem with my administration screen after installing and then uninstalling w3. However this file advanced-cache.php was deleted as a consequence of attempting to delete the plug-in from within WordPress after I got the message about the fatal error. Therefore, there don't appear to be any w3 hooks in my wp-content/plugins directory.

    What is the best way to procede Frederick?

    Also, if WP continues to list a non 3.0 compliant plug in as a the "hot" plug in you are going to continue to get people installing your plug in and dropping their admin panel. I would contact WP on this topic. I installed this plug int because it was listed in my admin panel.

    Rgds,

    Shaun

  20. supersnapp
    Member
    Posted 4 years ago #

    More instructions aside from simply removing files from the plugin directory should be forthcoming. This does not work in all cases, and has not worked in mine. W3 must be affecting aras outside of he plugin directory as I have renamed the entire directory as recommended in the link listed above, and created a new plug-in directory and I still have no admin panel.

    Rgds,

    Shaun

  21. Frederick Townes
    Member
    Posted 3 years ago #

    I'm not sure how you're arriving at these conclusions. I think we already have an email dialog going @supersnapp. So will continue there for now.

  22. dennysugar
    Member
    Posted 3 years ago #

    Ok, I finally got this plugin working (this was by far the most confusing and cumbersome plugin I've ever installed...and I've installed hundreds of WP sites) and it appears to work great. But now when I try to login to my wp-admin area I can't?

    Reading this suggests that after all that work I need to now hack up my worpress install and remove it from the site which seems a bit extreme.

    Instead, I'd like to know if this will be WP 3.0.1 compatible anytime soon? Or is there a link to show how I can access my wp-admin area and continue using the plugin?

    Thanks.

  23. Frederick Townes
    Member
    Posted 3 years ago #

    @dennysugar it already is. Check out the description page of the plugin, most people are doing ok. You likely have a conflict with your theme or another installed plugin. You can try changing the active theme or disabling other plugins to identify the conflict.

  24. BloggerDesign
    Member
    Posted 3 years ago #

    I had an issue that when I deactivated the plugin; it was still working. I then removed the plugin folder and got the admin errors. However, like Fredrick says, remove ALL the W3 Total Cache files and you should be good to go.

    Remove:
    wp-content/advanced-cache.php
    wp-content/db.php
    wp-content/w3tc/
    wp-content/w3-total-cache-config.php
    wp-content/plugins/w3-total-cache/

    Once those files were deleted, the admin errors went away.

    I also dropped the DB table that related to the plugin.

  25. Frederick Townes
    Member
    Posted 3 years ago #

    Thanks @BloggerDesign

  26. pandyan
    Member
    Posted 3 years ago #

    Hi Frederick

    Thank you for developing the W3-Total-Cahe plugin. The concept is great and I hope the bugs will be fixed so that we can enjoy the benefits.

    I did run into issues after installing the plugin. The first probloem i noticed was that some post links were leading to 404 error (Page Cannot be displayed error). I tried changing the settings, but did not get anywhere. So i decided to uninstall the plugin. I deleted all files as suggested, but still the links do not work if i use Custom permalinks. I reprovisioned my Virtual Dedicated Server, reinstalled database and wordpress, but sill Custom Permalinks are leading to 404 errors while clicking links to posts, categories or archives. I notice that the Apache Web Server is reporting errors when accessing the posts through custom permalinks.

    For some reason. the W3 Total Cache changed the PHP processing by the Web Server. Is there any documentation available that will explain what the W3 Total Cache updates when enabling "Page Cache"?

    I would like to use this plugin since the benefits are great. Just need the information on how it is designed so that I can fix the issues. Thank You.

  27. Frederick Townes
    Member
    Posted 3 years ago #

    There will always be bugs in any software. All of that was completely unnecessary, did you check your .htaccess file to see if the W3TC rules were removed when you deactivated (which is what normally happens)? If you have any other custom rules in the file they can interfere with caching so unknown quantities make it impossible to make a perfect product.

  28. mosomov
    Member
    Posted 3 years ago #

    I almost convinced myself that I was included in the list of people who "tried everything" to uninstall. After going through two pages of google searches on how to uninstall the plugin, I sat back, took a deep breath, and just thought for a second.

    I then browsed around my site directories via ftp and found a second .htaccess file a level up from the wordpress installation. I had overlooked this one because I had already removed the WT3 additions from the .htaccess file in the wp install directory. Turns out that this one was a WT3 addition as well, and my wp was fixed after I removed those additions.

    Overall, it was a VERY easy fix, but it sure did take a while to figure out what was wrong (finding the second .htaccess file). I learned a lot during the process after reading articles about cache, so this whole "headache" was actually worthwhile and will be critical to know in the future.

    Here is what I did to fix MY problems:
    - Delete plugin folder via ftp and all the other files as mentioned in above posts.
    - Delete WT3 additions in the wp-config.php
    - Find every .htaccess file in your site (I found two), from the wp folder to the site root, and remove the WT3 additions.
    - Upload and refresh.

    I hope this helps the next person that ends up exactly where I was.

  29. pandyan
    Member
    Posted 3 years ago #

    Finally i resolved my permalink issues by changing the following in the Apache HTTP Server conf file. Surprisingly I noticed that the AllowOverride was set to None when i checked it after uninstalling W3 Total Cache.

    /etc/httpd/conf/httpd.conf:

    #
    # AllowOverride controls what directives may be placed in .htaccess files.
    # It can be "All", "None", or any combination of the keywords:
    # Options FileInfo AuthConfig Limit
    #
    AllowOverride All

    I believe there is no way that W3 Total Cache would have changed this value. May be its a coincidence that my hosting provided has changed it without my notice.

    Fred - do you know if the plugin would touch the Apache configuration?

    Are there any detailed documentation available (for setting up W3TC) ? I guess more people will use this plugin if only there is more documentation available. Thank You.

  30. BloggerDesign
    Member
    Posted 3 years ago #

    One other thing that I've been noticing, wp-content/w3tc/ has permissions that exceed any that I have via FTP or CPanel. I've had to ask the host to remove this folder for me.

    Is that normal?

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