Title: Warning Errors
Last modified: August 7, 2020

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# Warning Errors

 *  [cbrockwell01](https://wordpress.org/support/users/cbrockwell01/)
 * (@cbrockwell01)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/)
 * I am fairly new to wp and have been tasked with updating and maintaining my company’s
   preexisting website. Whenever I log into my account, I am shown a variety of 
   Warning messages. I am unsure how to fix any of them, so any help would be greatly
   appreciated.
 * The warnings are listed below:
 * Warning: Declaration of Axiom_Plugin_Updater::download_package($package) should
   be compatible with WP_Upgrader::download_package($package, $check_signatures 
   = false) in /home/tporter1/public_html/wp-content/plugins/masterslider/admin/
   includes/classes/class-axiom-plugin-updater.php on line 29
 * Warning: session_start(): Cannot start session when headers already sent in /
   home/tporter1/public_html/wp-content/plugins/visual-products-configurator-for-
   woocommerce/admin/class-vpc-admin.php on line 125
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/tporter1/public_html/wp-content/plugins/masterslider/admin/includes/
   classes/class-axiom-plugin-updater.php:29) in /home/tporter1/public_html/wp-includes/
   functions.php on line 6221
 * Warning: preg_match_all(): Compilation failed: invalid range in character class
   at offset 11 in /home/tporter1/public_html/wp-content/plugins/js_composer_theme/
   include/autoload/hook-vc-grid.php on line 162
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/tporter1/public_html/wp-content/plugins/masterslider/admin/includes/
   classes/class-axiom-plugin-updater.php:29) in /home/tporter1/public_html/wp-admin/
   post.php on line 231

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Moderator [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * (@otto42)
 * WordPress.org Admin
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13223576)
 * The plugin hosted here on WordPress.org is named “master-slider”, with a dash.
   The one you’re referencing is “masterslider” with no dash.
 * Additionally, the plugin here does not have a “/admin/includes/classes/class-
   axiom-plugin-updater.php” file in it: [https://plugins.svn.wordpress.org/master-slider/tags/3.5.8/admin/includes/classes/](https://plugins.svn.wordpress.org/master-slider/tags/3.5.8/admin/includes/classes/)
 * Did you purchase this plugin from somewhere else? If so, then you should ask 
   about the problem through those channels instead of here.
 *  [zenjameo](https://wordpress.org/support/users/zenjameo/)
 * (@zenjameo)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13226057)
 * Hello,
 * I confirm same issue:
 * Declaration of Axiom_Plugin_Updater::download_package($package) should be compatible
   with WP_Upgrader::download_package($package, $check_signatures = false)
 * and
 * Function create_function() is deprecated
 * [http://joxi.ru/brR6BYVf7GZYXr](http://joxi.ru/brR6BYVf7GZYXr)
 *  [zenjameo](https://wordpress.org/support/users/zenjameo/)
 * (@zenjameo)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13226064)
 * Purchased on codecanyon
 * [https://codecanyon.net/item/master-slider-wordpress-responsive-touch-slider/7467925](https://codecanyon.net/item/master-slider-wordpress-responsive-touch-slider/7467925)
 *  Moderator [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * (@otto42)
 * WordPress.org Admin
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13227373)
 * Then you should probably contact the authors directly. Only the plugins hosted
   here are supported here.
 * But what you’re describing sounds like you need an update to the plugin.
 *  [jasonmac_75](https://wordpress.org/support/users/jasonmac_75/)
 * (@jasonmac_75)
 * [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13241983)
 * masterslider\admin\includes\classes
 * class-axiom-plugin-updater.php:
 * update line: 264:
    public function download_package( $package, $check_signatures
   = false, $hook_extra = array() ) {
 * Wordpress new string on 5.5 uppdate: $hook_extra = array() )
 * Worked for me until they get an update:

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Warning Errors’ is closed to new replies.

 * ![](https://ps.w.org/master-slider/assets/icon-256x256.png?rev=1638064)
 * [Master Slider - Responsive Touch Slider](https://wordpress.org/plugins/master-slider/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/master-slider/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/master-slider/)
 * [Active Topics](https://wordpress.org/support/plugin/master-slider/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/master-slider/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/master-slider/reviews/)

 * 5 replies
 * 4 participants
 * Last reply from: [jasonmac_75](https://wordpress.org/support/users/jasonmac_75/)
 * Last activity: [5 years, 9 months ago](https://wordpress.org/support/topic/warning-errors-11/#post-13241983)
 * Status: not resolved