Fatal error: Uncaught Error: Call to a member function set() on null in /wp-content/plugins/code-snippets/php/snippet-ops.php(582) : eval()'d code:10 Stack trace: #0 /wp-includes/class-wp-hook.php(324): fineartprints_currency('PLN') #1 /wp-includes/plugin.php(205): WP_Hook->apply_filters('PLN', Array) #2 /wp-content/plugins/woocommerce-multilingual/inc/currencies/class-wcml-multi-currency.php(481): apply_filters('wcml_client_cur...', 'PLN') #3 /wp-content/plugins/woocommerce-multilingual/inc/currencies/class-wcml-multi-currency.php(202): WCML_Multi_Currency->get_client_currency() #4 /wp-content/plugins/woocommerce-multilingual/inc/currencies/class-wcml-multi-currency.php(138): WCML_Multi_Currency->are_filters_need_loading() #5 /wp-content/plugins/sitepress-multilingual-cms/vendor/otgs/auryn/lib/Injector.php(444): WCML_Multi_Currency->__construct() #6 /wp-content/plugins/sitepress-multilingual-cms/vendor/otgs/auryn/lib/Injector.php(417): WPML\Auryn\Injector->instantiateWithoutCtorParams('WCML_Multi_Curr...') #7 /wp-content in /wp-content/plugins/code-snippets/php/snippet-ops.php(582) : eval()'d code on line 10