Title: WordPress Error Last modified: May 7, 2018 --- # WordPress Error * [setjo](https://wordpress.org/support/users/setjo/) * (@setjo) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/) * Why I am getting these errors in wordpress admin dashboard * deprecated since version 4.5.0! Use add_menu_page() instead. in /home/content/ p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions.php on line 3838 * Notice: add_object_page is deprecated since version 4.5.0! Use add_menu_page() instead. in /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions. php on line 3838 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions.php: 3838) in /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-admin/includes/ misc.php on line 1114 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions.php: 3838) in /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/option. php on line 919 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions.php: 3838) in /home/content/p3pnexwpnas10_data02/69/2862369/html/wp-includes/option. php on line 920` * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fwordpress-error-54%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 7 replies - 1 through 7 (of 7 total) * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9829156) * Try [manually resetting your plugins](https://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)( no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause. * If that does not resolve the issue, access your server via [SFTP or FTP](https://codex.wordpress.org/FTP_Clients), or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins). * Thread Starter [setjo](https://wordpress.org/support/users/setjo/) * (@setjo) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9829262) * site opens fine but I am getting these warnings in the backend of wordpress dashboard * Thread Starter [setjo](https://wordpress.org/support/users/setjo/) * (@setjo) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9829282) * I have deactivated all plugins one by one but this does not resolve the issue… Can I send you access? * [esmi](https://wordpress.org/support/users/esmi/) * (@esmi) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9830076) * **[@setjo](https://wordpress.org/support/users/setjo/)**: I appreciate this this situation is very frustrating for you but please never offer login credentials on these forums. The internet is a wonderful place full of very nice people but also a few very bad ones. Whilst I’m sure that everyone here is very nice, by giving someone the keys to your house, you are trusting they won’t steal anything. * If you do need that level of one-to-one support, then you really need to look for commercial WordPress support. In the meantime, switching to the default theme to rule out any theme-specific problems. * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9831371) * Also, if you can install plugins, install [Health Check](https://wordpress.org/plugins/health-check/). On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you’re still logged in, without affecting normal visitors to your site. * Thread Starter [setjo](https://wordpress.org/support/users/setjo/) * (@setjo) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9832340) * I disabled all plugins but issue still there. Please let me know how to fix this error * deprecated since version 4.5.0! Use add_menu_page() instead. in /home/content/ p3pnexwpnas10_data02/69/2862369/html/wp-includes/functions.php on line 3838 * Site opens fine and also I am able to login wordpress dashboard successfully but this warning is visible on the top of WordPress dashboard. * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9832552) * To confirm, do you still see the error with *all* plugins deactivated *and* the Twenty Seventeen theme enabled? * If so, that means you inexplicably have a WordPress core file with a function that has been deprecated since WordPress 4.5, which of course is highly unlikely, but try [downloading WordPress](https://wordpress.org/download/) again, access your server via [SFTP or FTP](https://codex.wordpress.org/FTP_Clients), or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), and delete then replace your copies of everything on the server **except** the wp-config.php file and the /wp-content/ directory with fresh copies from the download. This will effectively replace all of your core files without damaging your content and settings. * Some uploaders tend to be unreliable when overwriting files, so don’t forget to delete the original files before replacing them. Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘WordPress Error’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 7 replies * 3 participants * Last reply from: [James Huff](https://wordpress.org/support/users/macmanx/) * Last activity: [8 years, 4 months ago](https://wordpress.org/support/topic/wordpress-error-54/#post-9832552) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics