makorihi Currently, I am seeing the page up, however, it was receiving an error about an hour ago. My first recommendation is to have your host whitelist the following IP's
52.20.63.25
3.225.202.138
3.217.200.190
54.212.71.227
52.12.170.68
34.218.21.81
3.7.90.144
13.127.240.219
18.139.6.69
18.140.184.0
3.106.6.164
3.106.176.6
13.237.131.67
15.222.77.144
15.222.108.52
18.157.131.187
18.157.105.182
3.126.25.160
34.248.174.237
52.16.85.139
34.255.61.232
15.236.165.82
15.236.137.228
15.236.166.30
18.228.20.129
18.228.107.195
2600:1f10:4c55:e200::/56
2600:1f13:393:600::/56
2406:da1a:e10::/56
2406:da18:9d0:1400::/56
2406:da1c:58a:e100::/56
2600:1f11:f39:6f00::/56
2a05:d014:776:a600::/56
2a05:d018:dd:7800::/56
2a05:d012:4d8:6800::/56
2600:1f1e:342:2f00::/56
When it comes to integration methods, there is no need for added benefit to Cloudflare. CF integration allows for a more quicker and streamlined integration process, but since you are already integrated with us there would be no benefit to switching methods.