Fatal error on home page after successfull payment

I just made a first test payment and it went fine. It showed the Thank you page and then when I opened a home page I saw error “There has been a critical error on this website”.
In logs I found this:

2021/08/30 19:16:40 [error] 2676#0: *22311 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Call to a member function get_price() on bool in /var/www/site.com/public/wp-content/plugins/woocommerce/includes/wc-product-functions.php:963
Stack trace:
#0 /var/www/site.com/public/wp-content/plugins/woocommerce-gateway-paypal-express-checkout/includes/class-wc-gateway-ppec-cart-handler.php(533): wc_get_price_including_tax()
#1 /var/www/site.com/public/wp-includes/class-wp-hook.php(303): WC_Gateway_PPEC_Cart_Handler->inject_credit_messaging_configuration()
#2 /var/www/site.com/public/wp-includes/plugin.php(189): WP_Hook->apply_filters()
#3 /var/www/site.com/public/wp-content/plugins/woocommerce-gateway-paypal-express-checkout/includes/class-wc-gateway-ppec-cart-handler.php(610): apply_filters()
#4 /var/www/site.com/public/wp-includes/class-wp-hook.php(303): WC_Gateway_PPEC_Cart_Handler->enqueue_scripts()
#5 /var/www/site.com/public/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#6 /var/www/site.com/publ" while reading response header from upstream, client: 155.94.217.19, server: site.com, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9050", host: "site.com"
2021/08/30 19:26:00 [error] 2678#0: *22367 FastCGI sent in stderr: "Unable to open primary script: /var/www/site.com/public/style.php (No such file or directory)" while reading response header from upstream, client: 164.132.44.97, server: site.com, request: "GET /style.php?sig=rename&rename=1source_name=2 HTTP/1.1", upstream: "fastcgi://127.0.0.1:9050", host: "site.com", referrer: "site.com"