Woocommerce Internal server Error during checkout

Woocommerce Status Log

2022-07-31T10:17:58+00:00 CRITICAL Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/Libs/TNTSearch/Support/Collection.php:125
Stack trace:
#0 /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/Libs/TNTSearch/Support/Collection.php(125): count(NULL)
#1 /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/Libs/TNTSearch/TNTSearch.php(439): DgoraWcas\Engines\TNTSearchMySQL\Libs\TNTSearch\Support\Collection->count()
#2 /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/SearchQuery/MainQuery.php(317): DgoraWcas\Engines\TNTSearchMySQL\Libs\TNTSearch\TNTSearch->searchFibo(”, 9223372036854775807)
#3 /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/SearchPage.php(82): DgoraWcas\Engines\TNTSearchMySQL\SearchQuery\MainQuery->searchProducts()
#4 /home/petzseec/public_html/wp-includes/class-wp-hook.php(307): DgoraWcas\Engines\TNTSearchMySQL\SearchPage->searchProducts(Object(WP_Query))
#5 /home/petzseec/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#6 /home/petzseec/public_html/wp-includes/plugin.php(524): WP_Hook->do_action(Array)
#7 /home/petzseec/public_html/wp-includes/class-wp-query.php(1805): do_action_ref_array(‘pre_get_posts’, Array)
#8 /home/petzseec/public_html/wp-includes/class-wp-query.php(3586): WP_Query->get_posts()
#9 /home/petzseec/public_html/wp-includes/class-wp.php(648): WP_Query->query(Array)
#10 /home/petzseec/public_html/wp-includes/class-wp.php(775): WP->query_posts()
#11 /home/petzseec/public_html/wp-includes/functions.php(1330): WP->main(”)
#12 /home/petzseec/public_html/wp-blog-header.php(16): wp()
#13 /home/petzseec/public_html/index.php(17): require(‘/home/petzseec/…’)
#14 {main}
thrown in /home/petzseec/public_html/wp-content/plugins/ajax-search-for-woocommerce-premium/includes/Engines/TNTSearchMySQL/Libs/TNTSearch/Support/Collection.php on line 125

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