Title: Cannot activate or deactivate plugins after using wp fastest cache
Last modified: August 22, 2016

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# Cannot activate or deactivate plugins after using wp fastest cache

 *  [rjr16uk](https://wordpress.org/support/users/rjr16uk/)
 * (@rjr16uk)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/)
 * Hey really hoping someone can help me, Im not very tech savy and after lots of
   issues with the site already I now have another to add to the list. I installed
   wp fastest cache and it had a terrible affect on my divi theme, messed around
   with the layout etc, it would not let me deactivate or turn cache off, the settings
   just would never save. I went into my files via filezilla found the plugin file
   for fastest cache and just deleted the whole thing. After about 20 minutes the
   sight returned to normal however I cannot deactivate or activate plugins, it 
   tells me thats its deactivated if i select one but it doesnt atcually do it and
   stays active. The wp fastest cache has gone from plugins but its now affected
   this. I didnt have any problem with any previous plugins so if was this plugin.
 * Also a message in the plugin section of wordpress “The plugin wp-fastest-cache/
   wpFastestCache.php has been deactivated due to an error: Plugin file does not
   exist”
    seems to be stuck there and doesnt go, please help someone!
 * Any help I would very much apreciate it

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [Matthew](https://wordpress.org/support/users/kidsguide/)
 * (@kidsguide)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211352)
 * This topic needs to be posted in the WP Fastest Cache support forum.
 *  Thread Starter [rjr16uk](https://wordpress.org/support/users/rjr16uk/)
 * (@rjr16uk)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211407)
 * Hi, thank you for that however ive been told because i have completely removed
   it from the files under plugins there is no help there. WordPress itself is not
   allowing me to do anything in the back end, I really need some help anyone?
 *  [Matthew](https://wordpress.org/support/users/kidsguide/)
 * (@kidsguide)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211440)
 * Try manually install WP Fastest Cache in the backend and then go to the settings
   of WP Fastest Cache and delete all cache and minified css.
 *  Thread Starter [rjr16uk](https://wordpress.org/support/users/rjr16uk/)
 * (@rjr16uk)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211444)
 * Thanks Matthew I did try this but I can’t install plugins either also I did try
   deleting cache and turning off settings when the plugin was installed but it 
   just would save the settings it would go back to being on when I clicked back
   in the settings page
 *  [Matthew](https://wordpress.org/support/users/kidsguide/)
 * (@kidsguide)
 * [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211448)
 * > ive been told because I have completely removed it from the files under plugins
   > there is no help there. WordPress itself is not allowing me to do anything 
   > in the back end…
 * WP Fastest Cache still should know about this issue.
 * Do you have a backup of the website before this happened?

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Cannot activate or deactivate plugins after using wp fastest cache’ is
closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 5 replies
 * 2 participants
 * Last reply from: [Matthew](https://wordpress.org/support/users/kidsguide/)
 * Last activity: [11 years, 12 months ago](https://wordpress.org/support/topic/cannot-activate-or-deactivate-plugins-after-using-wp-fastest-cache/#post-5211448)
 * Status: not resolved

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