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WordPress caught an error with one of your plugins, WOOF - WooCommerce Products Filter

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Mari(@mari)
1 Post
Customers
March 4, 2022, 14:29

My client has a WordPress/Woocommerce site, with WOOF - WooCommerce Products Filter (version 2.1.4.2).

They have received a WordPress email advising them that this plug-in is causing a fatal eror, although when I check the site and use the product filter I am not encountering any obvious errors or issues.

Here is the relevant text from the email (edited for privacy):

Hi!

Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, WOOF - WooCommerce Products Filter.

When seeking help with this issue, you may be asked for some of the following information:
WordPress version 5.8.2
Current theme: Awaken Child 2020 (version 2.0.0)
Current plugin: WOOF - WooCommerce Products Filter (version 2.1.4.2)
PHP version 7.2.34

Error Details
=============
An error of type E_ERROR was caused in line 135 of the file /home/.../public_html/wp-content/plugins/woocommerce-products-filter/classes/storage.php. Error message: Uncaught Error: Call to a member function __isset() on null in /home/.../public_html/wp-content/plugins/woocommerce-products-filter/classes/storage.php:135
Stack trace:
#0 /home/.../public_html/wp-content/plugins/woocommerce-products-filter/classes/storage.php(106): WOOF_STORAGE->is_isset('woof_really_cur...')
#1 /home/.../public_html/wp-content/plugins/woocommerce-products-filter/index.php(2424): WOOF_STORAGE->unset_val('woof_really_cur...')
#2 /home/.../public_html/wp-content/plugins/woocommerce-products-filter/index.php(625): WOOF->set_really_current_term()
#3 /home/.../public_html/wp-includes/class-wp-hook.php(303): WOOF->wp_head('')
#4 /home/.../public_html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array)
#5 /home/.../public_html/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#6 /home/.../public_html/wp-includes/general-template.php(3015): do_action('wp_head')
#7 /home/.../public_html/wp-includ

As I said, the site appears to be functioning correctly, and I am able to use the product filter without any errors. However the error has obviously concerned us, so wanted to check if you were aware of this issue.

#1
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
March 7, 2022, 11:10

Hello

Please paste your license key here - https://share.pluginus.net/image/i20210618130558.png -> https://share.pluginus.net/image/i20210618130614.png

Update  the  plugin to latest  version - https://products-filter.com/how-to-make-auto-update-for-wordpress-plugins-and-themes-bought-on-envato

#2