fatal error

I am getting the following fatal error on my website… any ideas…

Fatal error: Uncaught Error: array_intersect(): Argument #1 ($array) must be of type array, string given
in /usr/www/users/cremad/wp-content/plugins/yith-woocommerce-ajax-navigation/includes/class-yith-wcan-query.php on line 1041

Call stack:

1. array_intersect()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/class-yith-wcan-query.php:1041
2. YITH_WCAN_Query::get_query_relevant_term_objects()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/filters/class-yith-wcan-filter-tax.php:516
3. YITH_WCAN_Filter_Tax::get_term_products()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/filters/class-yith-wcan-filter-tax.php:454
4. YITH_WCAN_Filter_Tax::get_term_children()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/filters/class-yith-wcan-filter-tax.php:390
5. YITH_WCAN_Filter_Tax::get_formatted_terms()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/filters/class-yith-wcan-filter-tax.php:339
6. YITH_WCAN_Filter_Tax::has_relevant_terms()
   wp-content/plugins/yith-woocommerce-ajax-navigation/includes/filters/class-yith-wcan-filter-tax.php:46

To recreate the error – got to main menu – products – click on any product category

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