Памятник ПВ-083

Fatal error: Uncaught TypeError: Unsupported operand types: string - string in /opt/grave2-wp/wp-content/themes/epitaphia/template-parts/catalog-product-template.php:628 Stack trace: #0 /opt/grave2-wp/wp-content/themes/epitaphia/product.php(45): include() #1 /opt/grave2-wp/wp-includes/template.php(812): require('/opt/grave2-wp/...') #2 /opt/grave2-wp/wp-includes/template.php(745): load_template('/opt/grave2-wp/...', false, Array) #3 /opt/grave2-wp/wp-includes/general-template.php(206): locate_template(Array, true, false, Array) #4 /opt/grave2-wp/wp-content/themes/epitaphia/single.php(6): get_template_part('product') #5 /opt/grave2-wp/wp-includes/template-loader.php(106): include('/opt/grave2-wp/...') #6 /opt/grave2-wp/wp-blog-header.php(19): require_once('/opt/grave2-wp/...') #7 /opt/grave2-wp/index.php(17): require('/opt/grave2-wp/...') #8 {main} thrown in /opt/grave2-wp/wp-content/themes/epitaphia/template-parts/catalog-product-template.php on line 628