Title: Problem with plugin
Last modified: June 14, 2019

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# Problem with plugin

 *  Resolved [Hamza](https://wordpress.org/support/users/krakmhmax/)
 * (@krakmhmax)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/problem-with-plugin-54/)
 * [14-Jun-2019 06:35:07 UTC] PHP Fatal error: Cannot redeclare Aws\manifest() (
   previously declared in /home/abch/public_html/wp-content/plugins/amazon-polly/
   vendor/aws/aws-sdk-php/src/functions.php:322) in /home/abch/public_html/wp-content/
   plugins/w3-total-cache/lib/Aws/Aws/functions.php on line 342
    [14-Jun-2019 06:
   35:07 UTC] PHP Fatal error: Unknown: Cannot use output buffering in output buffering
   display handlers in Unknown on line 0

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [Hamza](https://wordpress.org/support/users/krakmhmax/)
 * (@krakmhmax)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/problem-with-plugin-54/#post-11637012)
 * 500 server error comes up with activation.
 *  [alexxha](https://wordpress.org/support/users/alexxha/)
 * (@alexxha)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/problem-with-plugin-54/#post-11637996)
 * basically, after W3 Total Cache update 1 week ago.. this poly plugin breaks the
   site, i had to disable it …
 * “[09-Jun-2019 08:36:06 UTC] PHP Fatal error: Cannot redeclare Aws\constantly()(
   previously declared in /home/myuserbllabla/public_html/wp-content/plugins/amazon-
   polly/vendor/aws/aws-sdk-php/src/functions.php:19) in /home/myuserbllabla/public_html/
   wp-content/plugins/w3-total-cache/lib/Aws/Aws/functions.php on line 22 ”
 *  Plugin Contributor [tstachlewski](https://wordpress.org/support/users/tstachlewski/)
 * (@tstachlewski)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/problem-with-plugin-54/#post-11789079)
 * Hi,
    The problem is with different AWS SDK version which are being used by different
   plugins. In your case, the other plugin, is using very old SDK, which is completly
   not compatible with new versions. And in short there is no other solution than
   just ask them (the other plugin) to update SDK.
 * Cheers,
    Tomasz

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Problem with plugin’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/amazon-polly_303a47.svg)
 * [AWS for WordPress](https://wordpress.org/plugins/amazon-polly/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/amazon-polly/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/amazon-polly/)
 * [Active Topics](https://wordpress.org/support/plugin/amazon-polly/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/amazon-polly/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/amazon-polly/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [tstachlewski](https://wordpress.org/support/users/tstachlewski/)
 * Last activity: [6 years, 10 months ago](https://wordpress.org/support/topic/problem-with-plugin-54/#post-11789079)
 * Status: resolved