I Solved the problem with the Woocommerce & Cloudflare TPV Pending orders and Redys Pay System
In logs, You can see that specific connections has Browser Integrity Check blocked.
If you don´t disable Browser Integrity Check setting in FW page you can create one page rule for specific domain or url.
In my case use Woocommerce + TPV redsys plugin
For solve the issue It´s easy. You must create a new page rule with this:
Url Matches: https://(your domain)/?wc-api=WC_Gateway_redsys
Setting: Browser Integrity Check : OFF
I hope this help to community.