Title: Cannot activate plugin after installing opcache
Last modified: October 9, 2017

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# Cannot activate plugin after installing opcache

 *  Resolved [MarcusFuto](https://wordpress.org/support/users/marcusfuto/)
 * (@marcusfuto)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/)
 * Hello Abdullah,
 * Actually after the opcache installation and setting the right permissions I cannot
   activate the plugin.
 * I have tried reinstalling the plugin but it does not seem to help.
 * Other plugins can be activated / deactivated.
 * What might be the issue?
 * Thanks!

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

 *  Plugin Author [WesternDeal](https://wordpress.org/support/users/westerndeal/)
 * (@westerndeal)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9568832)
 * Hello [@marcusfuto](https://wordpress.org/support/users/marcusfuto/),
 * Can you see any errors in console or somewhere where it shows what’s wrong?
 * First,
    Delete the Plugin CF7 GoogleSheet Connector from Plugin page and make
   sure that folder is deleted from wp-contents/plugins, if not then delete manually..
   Then, Try to install again and activate,
 * If Still having the same issue
    then Enable the Debug Log in your WP Site
 * Open wp-config.php and Paste the following code
    **NOTE: You must insert this
   BEFORE /\* That’s all, stop editing! Happy blogging. \*/ in the wp-config.php
   file**
 *     ```
       // Enable WP_DEBUG mode
       define( 'WP_DEBUG', true );
   
       // Enable Debug logging to the /wp-content/debug.log file
       define( 'WP_DEBUG_LOG', true );
   
       // Disable display of errors and warnings 
       define( 'WP_DEBUG_DISPLAY', true);
   
       // Use dev versions of core JS and CSS files (only needed if you are modifying these core files)
       define( 'SCRIPT_DEBUG', true );
       ```
   
 * After that try to Activate the Plugin, then open the debug.log under wp-contents
   
   you will see some errors here, attach or send here, which helps to troubleshoot
   the issue,
 * Thanks
    Abdullah !
 *  Thread Starter [MarcusFuto](https://wordpress.org/support/users/marcusfuto/)
 * (@marcusfuto)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9569529)
 * Hello Abdullah,
 * I turned on debugging. Deleted the debug file to if a new gets created when trying
   to activate.
 * Did remove the plugin and installed again.
 * Nothing is written to the debug log..
 *  Plugin Author [WesternDeal](https://wordpress.org/support/users/westerndeal/)
 * (@westerndeal)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9569553)
 * [@marcusfuto](https://wordpress.org/support/users/marcusfuto/)
    Can’t you see
   any errors in console ? Have you tried various time? Can you create a staging
   site and show me somehow?
 *  Thread Starter [MarcusFuto](https://wordpress.org/support/users/marcusfuto/)
 * (@marcusfuto)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9572137)
 * Hello Abdullah,
 * Thanks for taking my issue seriously.
 * It turned out that mb string module had not been installed for PHP.
 * After having installed it, I could activate without problem!
 * Thanks!
 *  Plugin Author [WesternDeal](https://wordpress.org/support/users/westerndeal/)
 * (@westerndeal)
 * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9572183)
 * [@marcusfuto](https://wordpress.org/support/users/marcusfuto/)
 * Fantastic…!!

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

The topic ‘Cannot activate plugin after installing opcache’ is closed to new replies.

 * ![](https://ps.w.org/cf7-google-sheets-connector/assets/icon-128x128.gif?rev=
   3232650)
 * [GSheetConnector for CF7 – Connect Contact Form 7 to Google Sheets and Send Form Submissions in Real Time](https://wordpress.org/plugins/cf7-google-sheets-connector/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/cf7-google-sheets-connector/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/cf7-google-sheets-connector/)
 * [Active Topics](https://wordpress.org/support/plugin/cf7-google-sheets-connector/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cf7-google-sheets-connector/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cf7-google-sheets-connector/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [WesternDeal](https://wordpress.org/support/users/westerndeal/)
 * Last activity: [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-activate-plugin-after-installing-opcache/#post-9572183)
 * Status: resolved