Warning on activation

Hi,

I’ve just install your plugin and I have a php warning on all administration page.

Warning: call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in /www/wp-includes/class-wp-hook.php on line 286

Do you have the same alert ?

Here is my site status

### wp-core ###

version: 5.2.2
site_language: fr_FR
user_language: fr_FR
permalink: /%year%/%monthnum%/%day%/%postname%/
https_status: false
user_registration: 0
default_comment_status: open
multisite: false
user_count: 1
dotorg_communication: true

### wp-paths-sizes ###

wordpress_path: /www
wordpress_size: 39,72 MB (41648845 bytes)
uploads_path: /www/wp-content/uploads
uploads_size: 244,93 KB (250812 bytes)
themes_path: /www/wp-content/themes
themes_size: 3,05 MB (3200933 bytes)
plugins_path: /www/wp-content/plugins
plugins_size: 11,39 MB (11945666 bytes)
database_size: 1,03 MB (1081344 bytes)
total_size: 55,43 MB (58127600 bytes)

### wp-active-theme ###

name: Twenty Nineteen
version: 1.4
author: L’équipe WordPress
author_website: https://wordpress.org/
parent_theme: none
theme_features: automatic-feed-links, title-tag, post-thumbnails, menus, html5, custom-logo, customize-selective-refresh-widgets, wp-block-styles, align-wide, editor-styles, editor-style, editor-font-sizes, editor-color-palette, responsive-embeds, widgets
theme_path: /www/wp-content/themes/twentynineteen

### wp-themes (2) ###

Twenty Seventeen: version: 2.2, author: l’équipe WordPress
Twenty Sixteen: version: 2.0, author: l'équipe WordPress

### wp-plugins-active (3) ###

Advanced Custom Fields PRO: version: 5.8.3, author: Elliot Condon
WP Ultimate CSV Importer: version: 6.0.1, author: Smackcoders
WP Ultimate Exporter: version: 1.4.5, author: Smackcoders

### wp-plugins-inactive (2) ###

Akismet Anti-Spam: version: 4.1.2, author: Automattic
Hello Dolly: version: 1.7.2, author: Matt Mullenweg

### wp-media ###

image_editor: WP_Image_Editor_Imagick
imagick_module_version: 1690
imagemagick_version: ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org
imagick_limits: 
	imagick::RESOURCETYPE_AREA: 122 MB
	imagick::RESOURCETYPE_DISK: 1073741824
	imagick::RESOURCETYPE_FILE: 786432
	imagick::RESOURCETYPE_MAP: 512 MB
	imagick::RESOURCETYPE_MEMORY: 256 MB
	imagick::RESOURCETYPE_THREAD: 8
gd_version: bundled (2.1.0 compatible)
ghostscript_version: not available

### wp-server ###

server_architecture: Linux 4.9.0-8-amd64 x86_64
httpd_software: Apache/2.4.38 (Debian)
php_version: 7.1.30 64bit
php_sapi: apache2handler
max_input_variables: 5000
time_limit: 180
memory_limit: 256M
max_input_time: -1
upload_max_size: 10240M
php_post_max_size: 10240M
curl_version: 7.64.0 OpenSSL/1.1.1c
suhosin: false
imagick_availability: true
htaccess_extra_rules: false

### wp-database ###

extension: mysqli
server_version: 5.7.26
client_version: mysqlnd 5.0.12-dev - 20150407 - $Id: 38fea24f2847fa7519001be390c98ae0acafe387 $

### wp-constants ###

WP_HOME: undefined
WP_SITEURL: undefined
WP_CONTENT_DIR: /www/wp-content
WP_PLUGIN_DIR: /www/wp-content/plugins
WP_MAX_MEMORY_LIMIT: 256M
WP_DEBUG: false
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: false
WP_CACHE: false
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_LOCAL_DEV: undefined

### wp-filesystem ###

wordpress: writable
wp-content: writable
uploads: writable
plugins: writable
themes: writable

Thank you for your help.

• This topic was modified 6 years, 10 months ago by Concept Image.