Title: Fatal error: Call to undefined function Last modified: June 15, 2018 --- # Fatal error: Call to undefined function * Resolved [m0rticon](https://wordpress.org/support/users/m0rticon/) * (@m0rticon) * [8 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/) * Immediately after activating this plugin my website crashed. No changes made to the code or anything, immediate crash on activation. I am no longer able to access the dashboard and am given the following message: * Fatal error: Call to undefined function wp_styles() in /homepages/25/d210381942/ htdocs/SJJ/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/ nextgen_gallery_display/module.nextgen_gallery_display.php on line 259 * Judging by the plugin continuing to get positive reviews I assume this is a problem unique to me. My FTP is not letting my access my site right now so I can deactivate the plugin so if I can fix this issue from here that would be best. Is anyone aware of a solution to this? thanks in advance. Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/) * (@imagely) * [8 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10404937) * Really sorry to hear about this error, [@m0rticon](https://wordpress.org/support/users/m0rticon/) 🙁 Let’s first check the server settings to make sure you have everything up to date. Reach out to your hosting provider and confirm they have the [WordPress.org Requirements](https://wordpress.org/about/requirements/) settings in place: * MySQL v5.6 (or higher) PHP 7 (or higher) * Memory limit: 250MB (or higher) Upload limit: 50MB (or higher) Post limit: 50MB( or higher) /wp-content directory has sufficient permissions (i.e. 755) * With those in place, everything should work smoothly for you. If it still crashes, let’s check to see if there is a plugin conflict happening. Temporarily deactivate all plugins, then reactivate NextGEN Gallery only. Does the error still appear? If so, temporarily switch to a WordPress theme (this deactivation is only intended to quickly check to see if the error goes away or is still present). If by deactivating the other plugins, the error does go away, reactivate each of the other plugins one at a time to locate the culprit. Keep me posted on your results 🙂 * – Becky * Thread Starter [m0rticon](https://wordpress.org/support/users/m0rticon/) * (@m0rticon) * [8 years ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10405803) * Thank you for your help with this, my provider does meet all those requirements. I am unfortunately unable to follow the other steps because this message appears as soon as I log in, my dashboard is completely unavailable. To access my dashboard I would first need to disable NextGEN through FTP which would render me unable to activate it again without this error message returning. * I can confirm that I have two other gallery plugins active on my WordPress – is this likely to create a conflict? * Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/) * (@imagely) * [7 years, 12 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10423306) * [@m0rticon](https://wordpress.org/support/users/m0rticon/) – it may. Would you be willing to disable the NextGEN Gallery plugin manually via FTP, login to your WordPress dashboard and temporarily deactivate all of the other plugins, and then try reactivating NextGEN Gallery again? If so, keep me posted on your results. That will help clarify whether or not it may be a plugin conflict. * Thanks! Becky * Thread Starter [m0rticon](https://wordpress.org/support/users/m0rticon/) * (@m0rticon) * [7 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10437448) * I disabled all of my gallery plugins and unfortunately the problem remains. Upon activation of NextGEN I receive the same error message. * Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/) * (@imagely) * [7 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10459658) * @m0rticon- * Darn, I was hoping that would help clear that error message for you. 99% of the time, deactivating and reactivating plugins clears out most issues users see. Would you mind submitting a bug report to us here: [http://www.imagely.com/report-bug](http://www.imagely.com/report-bug). Please include the URL to this forum thread and mention that Becky referred you. We’ll take a closer look at why you’re seeing this error message and hopefully get this sorted out for you asap. 🙂 * Thanks! Becky * Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/) * (@imagely) * [7 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10489145) * Because it has been more than a week since your last reply, I am going to mark this as resolved as I assume you have found a solution. Please feel free to reply again if you still have questions. * Thanks! Becky Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Fatal error: Call to undefined function’ is closed to new replies. * ![](https://ps.w.org/nextgen-gallery/assets/icon-256x256.png?rev=2083961) * [Photo Gallery, Sliders, Proofing and Themes - NextGEN Gallery](https://wordpress.org/plugins/nextgen-gallery/) * [Frequently Asked Questions](https://wordpress.org/plugins/nextgen-gallery/#faq) * [Support Threads](https://wordpress.org/support/plugin/nextgen-gallery/) * [Active Topics](https://wordpress.org/support/plugin/nextgen-gallery/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/nextgen-gallery/unresolved/) * [Reviews](https://wordpress.org/support/plugin/nextgen-gallery/reviews/) * 6 replies * 2 participants * Last reply from: [Imagely](https://wordpress.org/support/users/imagely/) * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-call-to-undefined-function-103/#post-10489145) * Status: resolved