Title: Bug in plugin Settings Last modified: March 9, 2021 --- # Bug in plugin Settings * Resolved [ant123](https://wordpress.org/support/users/ant123/) * (@ant123) * [5 years, 3 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/) * When I go to the settings of the plugin, I see the following error message in WP admin (please note that I’m testing the plugin in a subdomain). * few arguments in /home/customer/www/mon-loisir.ch/public_html/ill/wp-content/ plugins/the-events-calendar/src/admin-views/tribe-options-display.php on line 110 * Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/mon-loisir.ch/public_html/ill/wp-content/plugins/the-events- calendar/src/admin-views/tribe-options-display.php:110) in /home/customer/www/ mon-loisir.ch/public_html/ill/wp-admin/admin-header.php on line 9 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fbug-in-plugin-settings%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 11 replies - 1 through 11 (of 11 total) * [lambrechtj](https://wordpress.org/support/users/lambrechtj/) * (@lambrechtj) * [5 years, 3 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14156211) * Same here when we click on the Settings link: * Une erreur de type E_ERROR a été causée dans la ligne 110 du fichier /var/www/ vhosts/***.com/httpdocs/wp-content/plugins/the-events-calendar/src/admin-views/ tribe-options-display.php. Message d’erreur : Uncaught ValueError: Unknown format specifier ” ” in /var/www/vhosts/***.com/httpdocs/wp-content/plugins/the-events- calendar/src/admin-views/tribe-options-display.php:110 - This reply was modified 5 years, 3 months ago by [lambrechtj](https://wordpress.org/support/users/lambrechtj/). * Plugin Contributor [András Guseo](https://wordpress.org/support/users/aguseo/) * (@aguseo) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14169214) * Hi [@ant123](https://wordpress.org/support/users/ant123/) [@lambrechtj](https://wordpress.org/support/users/lambrechtj/) * This error can happen for several reasons, some of them not coming from our plugin. * As a first I would kindly like to ask you to deactivate all plugins and switch to a default theme like twentytwenty and check if you are still getting the error then. * If not, then it is either the theme you use or one of the plugins causing a conflict. * Activate the theme first and check to make sure it’s not that one. Then start re-activating the plugins a few at a time and keep checking when the error message appears. * This way you should be able to narrow it down to the plugin that is causing this. * If you are getting the error with only The Events Calendar active and having a default theme active, then happy to dig further. * Which version of TEC do you have? Which theme are you using? * [@lambrechtj](https://wordpress.org/support/users/lambrechtj/) do you also have your site in a subdomain? * Thanks, Andras * [lambrechtj](https://wordpress.org/support/users/lambrechtj/) * (@lambrechtj) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14169252) * Hello, rolling back to the old PHP 7 did the job. Please let us know when you are PHP 8 compatible. * Thread Starter [ant123](https://wordpress.org/support/users/ant123/) * (@ant123) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14169282) * Hi András, * Thanks for the answer. * This is what I tried: * – Changed the theme to TwentyTwentyOne – Deactivated all extensions The problem remained. * To test if it was related to the subdomain, I tried on one of my other WP sites that is not in a subdomain and the same bug came up. * So, indeed, it looks related to The Events Calendar plugin and, as lambrechtj seems to say, it may come from the compatibility with PHP 8. * By the way, both lambrechtj and me seem to be using WP in French, but I doubt this can have any influence. - This reply was modified 5 years, 2 months ago by [ant123](https://wordpress.org/support/users/ant123/). - This reply was modified 5 years, 2 months ago by [ant123](https://wordpress.org/support/users/ant123/). * [xoco](https://wordpress.org/support/users/xoco/) * (@xoco) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14184632) * Same problem here: * I use french language, and PHP8.0.1, with Avada template - This reply was modified 5 years, 2 months ago by [xoco](https://wordpress.org/support/users/xoco/). * [hamzaouni119](https://wordpress.org/support/users/hamzaouni119/) * (@hamzaouni119) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14201649) * Hello [@aguseo](https://wordpress.org/support/users/aguseo/) I am having some problem like the other guys when I try to switch from one language to another this magic happens : Warning: preg_match(): Unknown modifier ‘t’ in /wp-content/ plugins/the-events-calendar/src/Tribe/JSON_LD/Event.php on line 178 I am using the pro version of Translatepress 1.9.6 and the famous event calendar Version 5.4.0.2 and please please Help I am out of solutions I tried to inject mo files and PO files [https://theeventscalendar.com/knowledgebase/k/translating-the-events-calendar/](https://theeventscalendar.com/knowledgebase/k/translating-the-events-calendar/) and nothing happened, So please be my savior at this bug. I am also facing another bug but let’s focus on this first :/ * Plugin Contributor [András Guseo](https://wordpress.org/support/users/aguseo/) * (@aguseo) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14222778) * [@hamzaouni119](https://wordpress.org/support/users/hamzaouni119/) * If you are not using PHP 8 than your issue is different. In this case please open a new thread so we can keep the communication focused. Thanks for your understanding! * [@xoco](https://wordpress.org/support/users/xoco/) [@ant123](https://wordpress.org/support/users/ant123/) [@lambrechtj](https://wordpress.org/support/users/lambrechtj/) * Indeed, this seems to be language related. This didn’t happen when I used the site in English (UK), English (US) or German. * So I dug into this and found the issue. There is a “glitch” in the French translation. Here’s a screenshot: [https://dl.dropboxusercontent.com/s/4c34849we07urpy/shot_210323_123807.jpg](https://dl.dropboxusercontent.com/s/4c34849we07urpy/shot_210323_123807.jpg) * The percentage mark needs to be translated as its HTML entity, so instead of having `100%` in the translation you should have `100%`. * I did this and the error was gone. * Why is this happening? Strings that need translation can use placeholders like`% s` for string, `%d` for digit and some more. In general the `%` sign is used in this. In the translation the `%` was used and I guess PHP 8 is looking for the proper placeholder but cannot find it, so throws an error. This is why `%` needs to be properly translated with its `%` HTML entity. * Try and let me know if this fixes it. * Cheers, Andras * Thread Starter [ant123](https://wordpress.org/support/users/ant123/) * (@ant123) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14226874) * Thanks. Did you fix it directly in the plugin or do we have to do it on our side? I just deactivated the plugin, deleted it and reinstalled the latest version and the problem remains. * Plugin Contributor [András Guseo](https://wordpress.org/support/users/aguseo/) * (@aguseo) * [5 years, 2 months ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14227203) * For now the fastest was is to fix it for yourselves. The fastest would probably be with the Loco Translate plugin. * The translations for the plugins in the WordPress.org repository are submitted by the community and need to be approved by a Global Translation Editor for that language. * I have submitted a request for this change in the French translations, however our team does not have GTE access for this language, so we need to wait until one of the French GTEs approves it. * Hope this helps. * A. * [Marho](https://wordpress.org/support/users/matumu/) * (@matumu) * [5 years, 1 month ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14412566) * Hi there, * This thread has been pretty quiet for a while, so we’re going to go ahead and close it. If you’re still looking for help with this, please do open a new thread, reference this one and we’d be more than happy to continue the conversation over there. * Have a great day. * Kind regards, * Marho * Plugin Contributor [András Guseo](https://wordpress.org/support/users/aguseo/) * (@aguseo) * [5 years ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14423888) * Hi [@ant123](https://wordpress.org/support/users/ant123/) [@hamzaouni119](https://wordpress.org/support/users/hamzaouni119/) [@xoco](https://wordpress.org/support/users/xoco/) [@lambrechtj](https://wordpress.org/support/users/lambrechtj/) * Just wanted to let you know that the right translation has been approved and should be already part of the download, or you can download the French translation manually from [here](https://translate.wordpress.org/projects/wp-plugins/the-events-calendar/stable/fr/default/export-translations/), rename it to `the-events-calendar-fr_FR.po` and `.mo`, and upload it to the right folder. * Should you have any further glitches please open a new thread as this one is closed as resolved and is not being monitored further. * Thanks and cheers, Andras Viewing 11 replies - 1 through 11 (of 11 total) The topic ‘Bug in plugin Settings’ is closed to new replies. * ![](https://ps.w.org/the-events-calendar/assets/icon-256x256.gif?rev=2516440) * [The Events Calendar](https://wordpress.org/plugins/the-events-calendar/) * [Frequently Asked Questions](https://wordpress.org/plugins/the-events-calendar/#faq) * [Support Threads](https://wordpress.org/support/plugin/the-events-calendar/) * [Active Topics](https://wordpress.org/support/plugin/the-events-calendar/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/the-events-calendar/unresolved/) * [Reviews](https://wordpress.org/support/plugin/the-events-calendar/reviews/) * 11 replies * 6 participants * Last reply from: [András Guseo](https://wordpress.org/support/users/aguseo/) * Last activity: [5 years ago](https://wordpress.org/support/topic/bug-in-plugin-settings/#post-14423888) * Status: resolved