Title: Warning:[…]/wp-content/plugins/jetpack/class.photon.php on line 91 Last modified: August 22, 2016 --- # Warning:[…]/wp-content/plugins/jetpack/class.photon.php on line 91 * Resolved [myriamrv](https://wordpress.org/support/users/myriamrv/) * (@myriamrv) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/) * Hello ! * Since a few time I noticed there’s an error on the top of each my blog post page: Warning: preg_match_all() expects parameter 2 to be string, array given in /homepages/ 4/d528781870/htdocs/cuisine-blog.fr/wp-content/plugins/jetpack/class.photon.php on line 91 * What’s this ? How can I remove it ? * You can see it for example here : [http://www.cuisine-blog.fr/recette/pate-brisee-salee-nature-aux-herbes-aux-epices/](http://www.cuisine-blog.fr/recette/pate-brisee-salee-nature-aux-herbes-aux-epices/) Or on any other post of my blog… * Thank you in advance for your help ! * Myriam * [https://wordpress.org/plugins/jetpack/](https://wordpress.org/plugins/jetpack/) Viewing 11 replies - 1 through 11 (of 11 total) * [dileepp89](https://wordpress.org/support/users/dileepp89/) * (@dileepp89) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5799942) * I too encountered the same after updating WordPress SEO. For me the error message is appearing only on posts with gallery images. * Plugin Contributor [Ryan C.](https://wordpress.org/support/users/ryanc413/) * (@ryanc413) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800010) * The first thing to check is whether any other plugins on your site may have a conflict. Please check our Known Issues list here: [http://jetpack.me/support/getting-started-with-jetpack/known-issues/](http://jetpack.me/support/getting-started-with-jetpack/known-issues/) * You can also try to deactivate all plugins on your site, and see if that resolves the issue. If it does, then activate them one at a time to determine which is causing the conflict. * If that doesn’t help, please rule out a theme conflict by temporarily changing your site’s theme to a default theme (such as Twenty Fifteen) and trying again. * Please let me know how that works for you! * [dileepp89](https://wordpress.org/support/users/dileepp89/) * (@dileepp89) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800027) * When I disabled Yoast WordPress SEO the issue got resolved. But being a frequent publisher I can’t work without Yoast. * [Richard D'Angelo](https://wordpress.org/support/users/craftpronj/) * (@craftpronj) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800055) * I had the same problem: “Warning: preg_match_all() expects parameter 2 to be string, array given in /home/content/72/9209272/html/blog/wp-content/plugins/ jetpack/class.photon.php on line 91” at the top of the page. * **_QUICK FIX_ Go to Jetpack settings and disable Photon until Yoast fixes the problem with a new update release. The warning goes away. * [dileepp89](https://wordpress.org/support/users/dileepp89/) * (@dileepp89) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800058) * Have reported the issue with Yoast. They might come-up with a fix soon. * Plugin Contributor [Ryan C.](https://wordpress.org/support/users/ryanc413/) * (@ryanc413) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800071) * We’ve received a few more reports of this issue, and it does indeed appear to be a conflict with the WordPress SEO plugin. This conflict has been reported to their team, and they appear to be working on it at the moment. You can follow along with their progress here: [https://github.com/Yoast/wordpress-seo/issues/2001](https://github.com/Yoast/wordpress-seo/issues/2001) * I’ll update this thread when the issue has been resolved. Please let me know if you have any questions that I can help with in the meantime! * [Alex](https://wordpress.org/support/users/hds7/) * (@hds7) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800123) * Looks like I’m not the only one with this issue. Thanks for the quick fix Richard! * Plugin Contributor [Ryan C.](https://wordpress.org/support/users/ryanc413/) * (@ryanc413) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800124) * We released a small Jetpack update today that includes a fix for this issue. You should receive an update notification in your dashboard soon, if you haven’t updated already. * Alternatively, you can download the latest version of Jetpack and manually update it yourself: [https://wordpress.org/plugins/jetpack/changelog/](https://wordpress.org/plugins/jetpack/changelog/) * If anyone has any questions, or runs into any further trouble, please don’t hesitate to let us know! * [Alex](https://wordpress.org/support/users/hds7/) * (@hds7) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800129) * Thanks Ryan! * [dileepp89](https://wordpress.org/support/users/dileepp89/) * (@dileepp89) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800131) * Thanks. * Plugin Contributor [Ryan C.](https://wordpress.org/support/users/ryanc413/) * (@ryanc413) * [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800135) * You’re welcome! I’m going to mark this thread resolved, but please let me know if you have any other questions. Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘Warning:[…]/wp-content/plugins/jetpack/class.photon.php on line 91’ is closed to new replies. * ![](https://ps.w.org/jetpack/assets/icon.svg?rev=2819237) * [Jetpack - WP Security, Backup, Speed, & Growth](https://wordpress.org/plugins/jetpack/) * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack/#faq) * [Support Threads](https://wordpress.org/support/plugin/jetpack/) * [Active Topics](https://wordpress.org/support/plugin/jetpack/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jetpack/reviews/) * 11 replies * 5 participants * Last reply from: [Ryan C.](https://wordpress.org/support/users/ryanc413/) * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/warningwp-contentpluginsjetpackclassphotonphp-on-line-91/#post-5800135) * Status: resolved