Title: Error rwith plugin activation
Last modified: September 13, 2018

---

# Error rwith plugin activation

 *  Resolved [olegsm](https://wordpress.org/support/users/olegsm/)
 * (@olegsm)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/)
 * I try to activate plugin and got
    Parse error: syntax error, unexpected ‘[‘ in/
   var/www/vhosts/mtdtraining.com/httpdocs/wp-content/plugins/autoptimize-criticalcss/
   ao_criticss_aas.php on line 29
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-rwith-plugin-activation%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/#post-10684702)
 * what php-version are you running olegsm?
 * frank
 *  Thread Starter [olegsm](https://wordpress.org/support/users/olegsm/)
 * (@olegsm)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/#post-10684768)
 * 5.3.3 (unfortunatly)
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/#post-10684804)
 * Afraid you’ll need at least 5.5 for this power-up but also for AO 2.4 (which 
   will probably be release by the end of the month) :-/
 * frank
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [7 years, 8 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/#post-10693444)
 * closing as reason is too old a version of PHP.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Error rwith plugin activation’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/autoptimize-criticalcss.svg)
 * [Autoptimize criticalcss.com power-up](https://wordpress.org/plugins/autoptimize-criticalcss/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/autoptimize-criticalcss/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/autoptimize-criticalcss/)
 * [Active Topics](https://wordpress.org/support/plugin/autoptimize-criticalcss/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/autoptimize-criticalcss/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/autoptimize-criticalcss/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [7 years, 8 months ago](https://wordpress.org/support/topic/error-rwith-plugin-activation/#post-10693444)
 * Status: resolved