Title: Error on CSS/Compressor.php
Last modified: May 12, 2017

---

# Error on CSS/Compressor.php

 *  [sarvesh-mru](https://wordpress.org/support/users/sarvesh-mru/)
 * (@sarvesh-mru)
 * [9 years, 1 month ago](https://wordpress.org/support/topic/error-on-csscompressor-php/)
 * Version: 0.9.5.4
 * I have autoptimize and W3TC on my site, after updating to WordPress 4.7.4 and
   updating W3TC to 0.9.5.4, i’m having the following error on my log.
 * PHP Fatal error: Maximum execution time of 120 seconds exceeded in /home/sites_web/
   client/www.mysite.com/www/wp-content/plugins/w3-total-cache/lib/Minify/Minify/
   CSS/Compressor.php on line 129
 * Is this problem due to the use of autoptimize alongside W3TC or it could be something
   else?

Viewing 1 replies (of 1 total)

 *  [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [9 years, 1 month ago](https://wordpress.org/support/topic/error-on-csscompressor-php/#post-9123822)
 * Morning [@sarvesh-mru](https://wordpress.org/support/users/sarvesh-mru/);
    When
   using both W3TC & Autoptimize, make sure to disable all minification features
   of W3TC so AO can take over. Minifiers are a jealous bunch, using more then one
   at the same time can result in unpredictable behavior 🙂
 * have a nice day,
    frank (ao dev)

Viewing 1 replies (of 1 total)

The topic ‘Error on CSS/Compressor.php’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [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/)
 * [Active Topics](https://wordpress.org/support/plugin/w3-total-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/w3-total-cache/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [9 years, 1 month ago](https://wordpress.org/support/topic/error-on-csscompressor-php/#post-9123822)
 * Status: not resolved