Title: [Plugin: NextGEN Gallery] Nextgen Error Message… Last modified: August 20, 2016 --- # [Plugin: NextGEN Gallery] Nextgen Error Message… * [PeterDD](https://wordpress.org/support/users/peterdd/) * (@peterdd) * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-nextgen-gallery-nextgen-error-message/) * While uploading images using NEXTGEN Gallery to my WordPress, I received these error. Can you tell me what is wrong? * ERROR: IMG_0237_1024x613.jpg : Warning: call_user_func_array() [function.call- user-func-array]: First argument is expected to be a valid callback, ‘StandardizedCustomFields:: create_meta_box’ was given in /home/dcnpeter/public_html/wp-includes/plugin.php on line 405 * Warning: Cannot modify header information – headers already sent by (output started at /home/dcnpeter/public_html/wp-includes/plugin.php:405) in /home/dcnpeter/public_html/ wp-content/plugins/nextgen-gallery/admin/upload.php on line 25 0 ERROR: IMG_3400_1024x768. jpg : Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘StandardizedCustomFields::create_meta_box’ was given in /home/dcnpeter/public_html/wp-includes/plugin.php on line 405 * Warning: Cannot modify header information – headers already sent by (output started at /home/dcnpeter/public_html/wp-includes/plugin.php:405) in /home/dcnpeter/public_html/ wp-content/plugins/nextgen-gallery/admin/upload.php on line 25 0 ERROR: IMG_3406_1024x768. jpg : Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘StandardizedCustomFields::create_meta_box’ was given in /home/dcnpeter/public_html/wp-includes/plugin.php on line 405 * Warning: Cannot modify header information – headers already sent by (output started at /home/dcnpeter/public_html/wp-includes/plugin.php:405) in /home/dcnpeter/public_html/ wp-content/plugins/nextgen-gallery/admin/upload.php on line 25 0 ERROR: IMG_3423_1024x768. jpg : Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘StandardizedCustomFields::create_meta_box’ was given in /home/dcnpeter/public_html/wp-includes/plugin.php on line 405 * Warning: Cannot modify header information – headers already sent by (output started at /home/dcnpeter/public_html/wp-includes/plugin.php:405) in /home/dcnpeter/public_html/ wp-content/plugins/nextgen-gallery/admin/upload.php on line 25 0 ERROR: IMG_3425_1024x768. jpg : Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘StandardizedCustomFields::create_meta_box’ was given in /home/dcnpeter/public_html/wp-includes/plugin.php on line 405 * Warning: Cannot modify header information – headers already sent by (output started at /home/dcnpeter/public_html/wp-includes/plugin.php:405) in /home/dcnpeter/public_html/ wp-content/plugins/nextgen-gallery/admin/upload.php on line 25 0 * [http://wordpress.org/extend/plugins/nextgen-gallery/](http://wordpress.org/extend/plugins/nextgen-gallery/) Viewing 1 replies (of 1 total) * [Japander](https://wordpress.org/support/users/japander/) * (@japander) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-nextgen-gallery-nextgen-error-message/#post-2444358) * I have the same error, using the Theme ‘Magazine Premium’ and WordPress 3.3.1 Viewing 1 replies (of 1 total) The topic ‘[Plugin: NextGEN Gallery] Nextgen Error Message…’ 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/) * 1 reply * 2 participants * Last reply from: [Japander](https://wordpress.org/support/users/japander/) * Last activity: [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-nextgen-gallery-nextgen-error-message/#post-2444358) * Status: not resolved