Extensions-Modules page blocked

Hello, I use opencart site. When I try to open Extensions-Modules page gives error mesage: “This web feature cannot be accessed from this address.” and bottom: Ray ID: 7a9bdfa908d98da0 Performance and security with Cloudflare

I have WAF (Web Application Firewall) rule for admin panel https://www.bver.store/admin/ Managed Challenge| URI Path, Country
I made it long time ago but I did not get any error message. Now I can not access to modules page.
Even I turned WAF off but still get warning message on extensions - modules page.

How can I resollve this issue?