Title: Undefined function wp_is_block_theme
Last modified: June 16, 2022

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# Undefined function wp_is_block_theme

 *  Resolved [ryanpluckrose](https://wordpress.org/support/users/ryanpluckrose/)
 * (@ryanpluckrose)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/undefined-function-wp_is_block_theme/)
 * Hi
 * I’m migrating my site from Digital Ocean to Kinsta. Both platforms are using 
   php 7.4 but on Kinsta I’m getting this when searching
 * FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Error: Call to
   undefined function Automattic\WooCommerce\Blocks\Templates\wp_is_block_theme()
   in /public/wp-content/plugins/woocommerce/packages/woocommerce-blocks/src/Templates/
   ProductSearchResultsTemplate.php:36
 * If I disable the plugin everything works fine.
 * Wordpress version: 5.8.4
    WooCommerce version: 6.6.0

Viewing 1 replies (of 1 total)

 *  Thread Starter [ryanpluckrose](https://wordpress.org/support/users/ryanpluckrose/)
 * (@ryanpluckrose)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/undefined-function-wp_is_block_theme/#post-15743785)
 * Updating wordpress to version 6 fixed this issue

Viewing 1 replies (of 1 total)

The topic ‘Undefined function wp_is_block_theme’ is closed to new replies.

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 * [Advanced Woo Search - Product Search for WooCommerce](https://wordpress.org/plugins/advanced-woo-search/)
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 * 1 reply
 * 1 participant
 * Last reply from: [ryanpluckrose](https://wordpress.org/support/users/ryanpluckrose/)
 * Last activity: [3 years, 9 months ago](https://wordpress.org/support/topic/undefined-function-wp_is_block_theme/#post-15743785)
 * Status: resolved