Hello, @Farhad,
First of all, The plugin is working fine on your site there is no issue check this video please: https://streamable.com/zbnd1i
Now, Regarding what you said “The problem is that I can not show this product’s page on a WordPress page”
The plugin only works on the single product page and cart page I have checked and confirmed it from the plugin documentation. The extension allows you: https://postimg.cc/WDCv28tn and other than this not possible in the plugin options/features.
Here are the documentation links of the plugin for further reference to understand:
https://woocommerce.com/document/bundles/
https://woocommerce.com/document/bundles/bundles-configuration/#getting-started
Regards 8Themes Team.