Error on the quote page

Hi,

I get this error on the view quote page from my website

Fatal error: Uncaught Error: Call to a member function get() on null in /home/hdrhenwt/public_html/wp-content/plugins/yith-woocommerce-request-a-quote/includes/functions.yith-request-quote.php:265 Stack trace: #0 /home/hdrhenwt/public_html/wp-content/plugins/yith-woocommerce-request-a-quote/templates/request-quote.php(20): yith_ywraq_print_notices() #1 /home/hdrhenwt/public_html/wp-content/plugins/woocommerce/includes/wc-core-functions.php(345): include('/home/hdrhenwt/...') #2 /home/hdrhenwt/public_html/wp-content/plugins/yith-woocommerce-request-a-quote/includes/class.yith-ywraq-shortcodes.php(46): wc_get_template('request-quote.p...', Array, '', '/home/hdrhenwt/...') #3 /home/hdrhenwt/public_html/wp-includes/shortcodes.php(356): YITH_YWRAQ_Shortcodes->request_quote_list('', '', 'yith_ywraq_requ...') #4 [internal function]: do_shortcode_tag(Array) #5 /home/hdrhenwt/public_html/wp-includes/shortcodes.php(228): preg_replace_callback('/\\[(\\[?)(yith_y...', 'do_shortcode_ta...', '<p><span>[yith_...') #6 /home/hdrhenwt/publ in /home/hdrhenwt/public_html/wp-content/plugins/yith-woocommerce-request-a-quote/includes/functions.yith-request-quote.php on line 265

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