Title: Error message when checking for updates for plugins
Last modified: February 6, 2025

---

# Error message when checking for updates for plugins

 *  ResolvedModerator [threadi](https://wordpress.org/support/users/threadi/)
 * (@threadi)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/error-message-when-checking-for-updates-for-plugins/)
 * Hi,
 * I am currently receiving a fatal error in relation to the APCu Manager for some
   calls in the backend:
 *     ```wp-block-code
       [Thu Feb 06 09:30:59.390009 2025] [proxy_fcgi:error] [pid 890461:tid 140173262169664] [client 172.70.110.168:0] AH01071: Got error 'PHP message: PHP Fatal error:  Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /var/www/vhosts/domain.tld/httpdocs/wp-content/plugins/apcu-manager/includes/plugin/class-updater.php:152\nStack trace:\n#0 /var/www/vhosts/domain.tld/httpdocs/wp-content/plugins/apcu-manager/includes/plugin/class-updater.php(152): array_key_exists()\n#1 /var/www/vhosts/domain.tld/httpdocs/wp-content/plugins/apcu-manager/includes/plugin/class-updater.php(243): APCuManager\\Plugin\\Updater->gather_info()\n#2 /var/www/vhosts/domain.tld/httpdocs/wp-includes/class-wp-hook.php(326): APCuManager\\Plugin\\Updater->info_update()\n#3 /var/www/vhosts/domain.tld/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters()\n#4 /var/www/vhosts/domain.tld/httpdocs/wp-includes/option.php(2544): apply_filters()\n#5 /var/www/vhosts/domain.tld/httpdocs/wp-includes/update.php(906): get_site_transient()\n#6 /var/www/vhosts/domain.tld/httpdocs/wp-admin/menu.php(33): wp_get_update_data()\n#7 /va...', referer: https://www.domain.tld/wp-admin/admin.php?page=wpml_plugin_log
       ```
   
 * The reason seems to be that when retrieving the JSON file at `https://releases.
   perfops.one/apcu-manager.json` an HTML code appears.
 * Could you please take a look at this?
    -  This topic was modified 1 year, 2 months ago by [threadi](https://wordpress.org/support/users/threadi/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Pierre Lannoy](https://wordpress.org/support/users/pierrelannoy/)
 * (@pierrelannoy)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/error-message-when-checking-for-updates-for-plugins/#post-18288604)
 * Hello [@threadi](https://wordpress.org/support/users/threadi/)
 * Thanks for the report. It was initially a Github error that corrupted the release
   file. It’s now fixed…
 * Next release will includes a workaround for that, thanks for the suggestion 😉
 *  Moderator [threadi](https://wordpress.org/support/users/threadi/)
 * (@threadi)
 * [1 year, 2 months ago](https://wordpress.org/support/topic/error-message-when-checking-for-updates-for-plugins/#post-18288648)
 * Nice, thanks 🙂

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Error message when checking for updates for plugins’ is closed to new
replies.

 * ![](https://ps.w.org/apcu-manager/assets/icon-256x256.png?rev=2225345)
 * [APCu Manager](https://wordpress.org/plugins/apcu-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/apcu-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/apcu-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/apcu-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/apcu-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/apcu-manager/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [threadi](https://wordpress.org/support/users/threadi/)
 * Last activity: [1 year, 2 months ago](https://wordpress.org/support/topic/error-message-when-checking-for-updates-for-plugins/#post-18288648)
 * Status: resolved