"An error occured" issue when using Cloudflare

[miguelang611]

When proxying CloudPanel Admin UI with Cloudflare proxy I am getting this error: "An error occured"

I already checked other discussions such as this: #408, just in case it was a SSL certificate problem. I forced renewal using: su -s /bin/bash -c '/usr/bin/clpctl lets-encrypt:renew:certificates' clp and I got the Cloudflare typical notification of new certificate issued for my domain.

Tried clearing DNS cache and so on. When unproxying the website, it properly works, but when it is proxied i still get this issue.

Last month I was able to use the admin UI without any issue whatsover.

Any sort of idea?

Thanks in advanced!