Php fault

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Fatal error: Uncaught Error: Call to a member function is_type() on bool in /home/dazsmode/public_html/wp-content/plugins/woocommerce-pre-orders/includes/class-wc-pre-orders-product.php:322 Stack trace: #0 /home/dazsmode/public_html/wp-content/plugins/woocommerce-gateway-stripe/includes/compat/trait-wc-stripe-pre-orders.php(113): WC_Pre_Orders_Product::product_is_charged_upfront(false) #1 /home/dazsmode/public_html/wp-content/plugins/woocommerce-gateway-stripe/includes/payment-methods/class-wc-stripe-upe-payment-gateway.php(1017): WC_Stripe_Payment_Gateway->is_pre_order_product_charged_upfront(NULL) #2 /home/dazsmode/public_html/wp-content/plugins/woocommerce-gateway-stripe/includes/payment-methods/class-wc-stripe-upe-payment-gateway.php(344): WC_Stripe_UPE_Payment_Gateway->is_payment_needed(66127) #3 /home/dazsmode/public_html/wp-content/plugins/woocommerce-gateway-stripe/includes/payment-methods/class-wc-stripe-upe-payment-gateway.php(250): WC_Stripe_UPE_Payment_Gateway->javascript_params() #4 /home/dazsmode/public_html in /home/dazsmode/public_html/wp-content/plugins/woocommerce-pre-orders/includes/class-wc-pre-orders-product.php on line 322
There has been a critical error on this website.

My host company habe advised its got php missing and your are the people to advise