Title: [Plugin: WP Maintenance Mode] White Screen Last modified: August 20, 2016 --- # [Plugin: WP Maintenance Mode] White Screen * Resolved [Maxmalte](https://wordpress.org/support/users/maxmalte/) * (@maxmalte) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/) * After installation from 1.7.0 my blog shows a wihte screen. i have to delete the plugin!!!! * [http://wordpress.org/extend/plugins/wp-maintenance-mode/](http://wordpress.org/extend/plugins/wp-maintenance-mode/) Viewing 11 replies - 1 through 11 (of 11 total) * [Frank Bueltge](https://wordpress.org/support/users/bueltge/) * (@bueltge) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427843) * Please check again, maybe i think, the svn was slower as your update and not all files was inside, thanks. * [D'artisan](https://wordpress.org/support/users/dartisangmailcom/) * (@dartisangmailcom) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427844) * Same for me: “Fatal error: Call to undefined function is_plugin_active_for_network()” * [Frank Bueltge](https://wordpress.org/support/users/bueltge/) * (@bueltge) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427846) * please check again, works also fine; or send me the mail with error line of this error message. The function is onyl for multisite; do you have multisite aktive? * [D'artisan](https://wordpress.org/support/users/dartisangmailcom/) * (@dartisangmailcom) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427847) * Nope, no multi-site active on mine. I tried clearing the cache (browser and content delivery network) several time but no joy. I’ll give it another try in a couple of minutes and post an update. Thanks. * [P.S. It’s line 124 in wp-maintenance-mode.php: * “if ( is_plugin_active_for_network( plugin_basename( __FILE__ ) ) )” * ] * [Frank Bueltge](https://wordpress.org/support/users/bueltge/) * (@bueltge) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427849) * ok, in my line 124 is `if ( is_multisite() && is_plugin_active_for_network( plugin_basename( __FILE__ ) ) )` please update the plugin, i think the SVN is to slow, many files and i send all live. Its important for, that i send the readme. txt with version changes after ll other files. * [D'artisan](https://wordpress.org/support/users/dartisangmailcom/) * (@dartisangmailcom) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427851) * Yep, replaced it and it’s fine now. * Thanks Frank, and thanks for an incredibly useful plugin! * [Frank Bueltge](https://wordpress.org/support/users/bueltge/) * (@bueltge) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427852) * Thanks for your feedback! * [amigoaldo](https://wordpress.org/support/users/amigoaldo/) * (@amigoaldo) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2427954) * Tanks also from me. I downloaded in a work directory theplugin and verified 124 line: it was correct. I reinstalled the plugin automatically. I works ok. Thanks for the plugin adn the support. * Aldo * [Vivodia](https://wordpress.org/support/users/vivodia/) * (@vivodia) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2428032) * I have a white screen too. I verified the line 124 … It’s correct. * The plugin still does not work for me. Here is the message I get when I try to activate it : * Fatal error: No parent class available in /sites/laproducdejo.fr/wordpress/wp- content/plugins/wp-maintenance-mode/wp-maintenance-mode.php on line 186 * I’m running : WP 3.1.4 * Regards, Nicolas * [Frank Bueltge](https://wordpress.org/support/users/bueltge/) * (@bueltge) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2428057) * Thanks for this hint; its not possible for me to check on all version, i check only on last stable and nightly build. I have fix this problem and release version 1.7.1 I hope this works. * [Vivodia](https://wordpress.org/support/users/vivodia/) * (@vivodia) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2428058) * This works perfectly. * Thank you for your nice plugin. * I’m impressed by your timely response. * Nicolas Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘[Plugin: WP Maintenance Mode] White Screen’ is closed to new replies. * ![](https://ps.w.org/wp-maintenance-mode/assets/icon-256x256.gif?rev=3027645) * [LightStart - Maintenance Mode, Coming Soon and Landing Page Builder](https://wordpress.org/plugins/wp-maintenance-mode/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-maintenance-mode/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-maintenance-mode/) * [Active Topics](https://wordpress.org/support/plugin/wp-maintenance-mode/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-maintenance-mode/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-maintenance-mode/reviews/) * 11 replies * 5 participants * Last reply from: [Vivodia](https://wordpress.org/support/users/vivodia/) * Last activity: [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-wp-maintenance-mode-white-screen/#post-2428058) * Status: resolved