Fatal error: Uncaught TypeError: Unsupported operand types: null + string in /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php:357 Stack trace: #0 /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php(607): AFFILIATE_Helper->get_block_css(Array) #1 /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php(599): AFFILIATE_Helper->get_assets(Array) #2 /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php(509): AFFILIATE_Helper->get_assets(Array) #3 /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php(541): AFFILIATE_Helper->get_generated_stylesheet(Object(WP_Post)) #4 /home/customer/www/bestkickoff.com/public_html/wp-includes/class-wp-hook.php(324): AFFILIATE_Helper->generate_assets(Object(WP)) #5 /home/customer/www/bestkickoff.com/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #6 /home/customer/www/bestkickoff.com/public_html/wp-includes/plugin.php(565): WP_Hook->do_action(Array) #7 /home/customer/www/bestkickoff.com/public_html/wp-includes/class-wp.php(830): do_action_ref_array('wp', Array) #8 /home/customer/www/bestkickoff.com/public_html/wp-includes/functions.php(1336): WP->main('') #9 /home/customer/www/bestkickoff.com/public_html/wp-blog-header.php(16): wp() #10 /home/customer/www/bestkickoff.com/public_html/index.php(17): require('/home/customer/...') #11 {main} thrown in /home/customer/www/bestkickoff.com/public_html/wp-content/plugins/affiliatebooster-blocks/src/affiliate-helpers/class-affiliate-helper.php on line 357