Not able to connect Cloudflare warp in Dubai, UAE

I am using Etisalat internet provider in Dubai, UAE. I am trying to connect Cloudflare WARP Vpn so that I can access the office servers located in egypt. I am unable to connect to cloudflare warp. I get the error “We are unable to register your client”. I also tried with other ISP here called Du. i get the same error as well.
How this problem can be solved ?