Error merchand

[cfsell.corp]

Hi, I recently connected the site to Cloudflare to connect the ssl certificate. My site uses external payment from the freekassa service, when the user pays, the money is credited to the cashier, but not to the site, but in the error this is:
HTTP/1.1 301 Moved Permanently
Date: Tue, 05 Jan 2021 13:28:51 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: max-age=3600
Expires: Tue, 05 Jan 2021 14:28:51 GMT
Location: https://cfsell.ru/result
cf-request-id: 07745580bb0000f9e632bed000000001
Report-To: {“endpoints”:[{“url”:“https://a.nel.Cloudflare.com/report?s=dVXb7mmgAoD6Kun3fsuLE9zmsMcl8ZCG7nXmw%2BhntJPoOtc0i9BpEnqUhyYv4Ws3jythJw31osckwuS8tgPeekVWZt4UITFdmjY%3D”}],“group”:“cf-nel”,“max_age”:604800}
NEL: {“report_to”:“cf-nel”,“max_age”:604800}
Server: Cloudflare
CF-RAY: 60cd8b7acf07f9e6-PRG

Many say this because of Cloudflare

[sdayman]

That’s not an error, it’s a redirect. Without knowing the initial URL it’s trying to reach, it’s difficult to diagnose, but it’s probably a redirect to HTTPS.

Was your site using HTTPS before you added it to Cloudflare?

[cfsell.corp]

Yes used

[sdayman]

Does your server’s IP address end in .49?

[cfsell.corp]

Yes .49

[sdayman]

$ curl --resolve cfsell.ru:443:XX.XX.XXX.49 https://cfsell.ru
curl: (7) Failed to connect to cfsell.ru port 443: Connection refused

And you’re sure your site was using HTTPS before you added it to Cloudflare? This does not seem possible.