Exchange ECP page error

Hello

I was able to access Internal exchange using guide by this link (thank you)

https://community.sophos.com/products/xg-firewall/f/firewall-and-policies/119640/exchange-2019-and-xg-waf-publishing-with-mapi-rpc

 

A little bit more modification was required, as WAF rule was being kicked again and again. Mostly, OWA works now, but not ECP.

The ECP seems to be hitting some WAF error as below -

/ecp/15.2.595.3/scripts/js.axd
WAF Anomaly
Inbound Anomaly Score Exceeded (Total Score: 5)
403
2277
429
17071

This is my ECP and other rule page. What am I doing wrong?