Extremely Slow Website - by Ahmed - on WordPress WooCommerce support

HI There,
I’m experiencing extreme slowness on my website, after contacting the hosting company and they informed me there is high CPU usage coming from the php script from the xstore files. Here is a copy of what they sent me
”
[Wed Mar 24 11:50:37.719041 2021] [proxy_fcgi:error] [pid 12949:tid
140387775670016] [client 5.36.232.137:55866] AH01071: Got error ‘PHP
message: PHP Fatal error: Uncaught Error: Call to undefined method
St_Woo_Shop::get_gallery_image_ids() in
/home/wp_7yv9pi/smokeonesmart.com/wp-content/themes/xstore/framework/woo.php:2248\nStack
trace:\n#0
/home/wp_7yv9pi/smokeonesmart.com/wp-includes/class-wp-hook.php(292):
etheme_available_variation_gallery(Array, Object(St_Woo_Shop),
Object(WC_Product_Variation))\n#1
/home/wp_7yv9pi/smokeonesmart.com/wp-includes/plugin.php(212):
WP_Hook->apply_filters(Array, Array)\n#2
/home/wp_7yv9pi/smokeonesmart.com/wp-content/plugins/et-core-plugin/packages/st-woo-swatches/public/partials/class-st-woo-shop.php(145):
apply_filters(‘sten_wc_archive…’, Array, Object(St_Woo_Shop),
Object(WC_Product_Variation))\n#3
/home/wp_7yv9pi/smokeonesmart.com/wp-includes/class-wp-hook.php(292):
St_Woo_Shop->available_variations(Array)\n#4
/home/wp_7yv9pi/smokeonesmart.com/wp-includes/plugin.php(212):
WP_Hook->apply_filters(Array, Array)\n#5
/home/wp_7yv9pi/smokeonesmart.com/wp-content/plugins/et-core-plugin/packages/st-wo…’,
referer: https://www.smokeonesmart.com/

This PHP error is affecting the site’s performance and causing the
slowness. This seems to be related to the theme “xstore” and the plugin
“et-core-plugin”. I do not see any pending updates on the theme and that
plugin specifically, but I do recommend reaching out to the plugin and
theme developer to help address the PHP error”