Title: New version problem
Last modified: December 18, 2020

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# New version problem

 *  Resolved [marcoskito](https://wordpress.org/support/users/marcoskito/)
 * (@marcoskito)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/)
 * when activating the plugin in the new version, wordpress stops working.
    the 
   email indicates An error of type E_COMPILE_ERROR was caused at line 26 of the
   file /var/www/html/wp-content/plugins/wp-optimize/vendor/matthiasmullie/minify/
   src/Minify.php. Error message: Cannot declare class MatthiasMullie \ Minify \
   Minify, because the name is already in use.

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [ittone](https://wordpress.org/support/users/ittone/)
 * (@ittone)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13809720)
 * I confirm the above. Error occurs following update OR new installation.
 * V3.1.5
    -  This reply was modified 5 years, 5 months ago by [ittone](https://wordpress.org/support/users/ittone/).
    -  This reply was modified 5 years, 5 months ago by [ittone](https://wordpress.org/support/users/ittone/).
 *  [Marc Lacroix](https://wordpress.org/support/users/marcusig/)
 * (@marcusig)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13809817)
 * Hi there,
 * Thanks for the report.
    Do you have an other optimisation plugin installed, which
   offers minification of scripts?
 * Best regards
    Marc.
 *  [Augmented Reality News](https://wordpress.org/support/users/auganix/)
 * (@auganix)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13809839)
 * Also had this same error, plugin crashed my site after updating to version 3.1.5.
   
   Had to restore entire site from a backup.
 * Not ideal. Deactivating until fixed.
 *  Thread Starter [marcoskito](https://wordpress.org/support/users/marcoskito/)
 * (@marcoskito)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13809889)
 * I have Fast Velocity Minify installed and only use it to minify.
    I use WP-optimize
   just to clean up the database, the other features I never activated.
 *  [ittone](https://wordpress.org/support/users/ittone/)
 * (@ittone)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13809961)
 * I also have FVM installed and wp-optimize minify disabled.
 * On another site of mine the minify of wp-optimize is used and the 3.1.5 update
   is working fine.
    -  This reply was modified 5 years, 5 months ago by [ittone](https://wordpress.org/support/users/ittone/).
 *  Plugin Author [David Anderson / Team Updraft](https://wordpress.org/support/users/davidanderson/)
 * (@davidanderson)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13810350)
 * Hi,
 * This conflict has been fixed in version 3.1.6 – please update, and all should
   be well (and sorry for the trouble!).
 * David
 *  Thread Starter [marcoskito](https://wordpress.org/support/users/marcoskito/)
 * (@marcoskito)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13812063)
 * Thanks, the problem was solved in version 3.1.6.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘New version problem’ is closed to new replies.

 * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899)
 * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-optimize/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-optimize/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-optimize/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-optimize/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-optimize/reviews/)

## Tags

 * [Crash](https://wordpress.org/support/topic-tag/crash/)
 * [crashed](https://wordpress.org/support/topic-tag/crashed/)

 * 7 replies
 * 5 participants
 * Last reply from: [marcoskito](https://wordpress.org/support/users/marcoskito/)
 * Last activity: [5 years, 5 months ago](https://wordpress.org/support/topic/new-version-problem-2/#post-13812063)
 * Status: resolved