Title: multisite->singlesite error
Last modified: February 15, 2021

---

# multisite->singlesite error

 *  Resolved [stesta](https://wordpress.org/support/users/stesta/)
 * (@stesta)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/multisite-singlesite-error/)
 * Hi,
 * I migrated my website from WP multisite to singlesite. Now, when activating WooCommerce
   I gen an error:
 *     ```
       Warning: array_key_exists() expects parameter 2 to be array, bool given in /var/www/clients/client1/web43/web/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper-options.php on line 54
       Call Stack
       #	Time	Memory	Function	Location
       1	0.0033	394216	{main}( )	.../tools.php:0
       2	0.0033	394952	require_once( '/var/www/clients/client1/web43/web/wp-admin/admin.php )	.../tools.php:40
       3	2.3902	41131888	do_action( $tag = 'admin_init' )	.../admin.php:175
       4	2.3902	41132264	WP_Hook->do_action( $args = [0 => ''] )	.../plugin.php:484
       5	2.3902	41132264	WP_Hook->apply_filters( $value = '', $args = [0 => ''] )	.../class-wp-hook.php:311
       6	2.4183	41430296	Automattic\WooCommerce\Admin\Notes\WooSubscriptionsNotes->admin_init( '' )	.../class-wp-hook.php:287
       7	2.4183	41430296	Automattic\WooCommerce\Admin\Notes\WooSubscriptionsNotes->check_connection( )	.../WooSubscriptionsNotes.php:77
       8	2.4183	41430296	Automattic\WooCommerce\Admin\Notes\WooSubscriptionsNotes->is_connected( )	.../WooSubscriptionsNotes.php:106
       9	2.4183	41430296	WC_Helper_Options::get( $key = 'auth', $default = ??? )	.../WooSubscriptionsNotes.php:125
   
       ( ! ) Warning: array_key_exists() expects parameter 2 to be array, bool given in /var/www/clients/client1/web43/web/wp-content/plugins/woocommerce/includes/admin/helper/class-wc-helper-options.php on line 54
       Call Stack
       #	Time	Memory	Function	Location
       1	0.0033	394216	{main}( )	.../tools.php:0
       2	0.0033	394952	require_once( '/var/www/clients/client1/web43/web/wp-admin/admin.php )	.../tools.php:40
       3	2.3902	41131888	do_action( $tag = 'admin_init' )	.../admin.php:175
       4	2.3902	41132264	WP_Hook->do_action( $args = [0 => ''] )	.../plugin.php:484
       5	2.3902	41132264	WP_Hook->apply_filters( $value = '', $args = [0 => ''] )	.../class-wp-hook.php:311
       6	2.4183	41430296	Automattic\WooCommerce\Admin\Notes\WooSubscriptionsNotes->admin_init( '' )	.../class-wp-hook.php:287
       7	2.4190	41430832	Automattic\WooCommerce\Admin\Notes\WooSubscriptionsNotes->is_connected( )	.../WooSubscriptionsNotes.php:79
       8	2.4190	41430832	WC_Helper_Options::get( $key = 'auth', $default = ??? )	.../WooSubscriptionsNotes.php:125
       ```
   
 * Removing and re-installing WooCommerce Plugin does not help. Any ideas, what 
   went wrong here?
 * Thx, Stefan
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmultisite-singlesite-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Damianne P (a11n)](https://wordpress.org/support/users/drwpcom/)
 * (@drwpcom)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/multisite-singlesite-error/#post-14247086)
 * Hi [@stesta](https://wordpress.org/support/users/stesta/). Sorry that we initially
   missed your post. This issue is likely caused by a conflict with a plugin or 
   your theme. We have [a guide](https://docs.woocommerce.com/document/how-to-test-for-conflicts/)
   to help you check for conflicts. You can also check the [discussion on Github](https://github.com/woocommerce/woocommerce/issues/22176)
   for a possible explanation.

Viewing 1 replies (of 1 total)

The topic ‘multisite->singlesite error’ is closed to new replies.

 * ![](https://ps.w.org/woocommerce/assets/icon.svg?rev=3234504)
 * [WooCommerce](https://wordpress.org/plugins/woocommerce/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce/reviews/)

## Tags

 * [multisite](https://wordpress.org/support/topic-tag/multisite/)

 * 1 reply
 * 2 participants
 * Last reply from: [Damianne P (a11n)](https://wordpress.org/support/users/drwpcom/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/multisite-singlesite-error/#post-14247086)
 * Status: resolved