Error 503 when running status code checker

Hello,

I was running this HTTP code status checker: https://httpstatus.io/ when I came on this issue:

Upon checking further, I got this header response:

date
Tue, 28 Sep 2021 18:15:07 GMT

content-type
text/html; charset=UTF-8

transfer-encoding
chunked

connection
close

x-frame-options
SAMEORIGIN

permissions-policy

accelerometer=(),autoplay=(),camera=(),clipboard-read=(),clipboard-write=(),fullscreen=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()

cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0

expires
Thu, 01 Jan 1970 00:00:01 GMT

expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"

report-to

{“endpoints”:[{“url”:“https://a.nel.cloudflare.com/report/v3?s=HZNah66lZHLQT%2Fmy51skJvVSZAD3xK4wg0RnpQxAkPIRHZWiRaMz8dxPzlkyII6AZemmhcOIJ%2Fit32plNtgTLFYZbkhAPbulLLjm7k9r7rke5jEOniEg7ylf3%2B2b9BZWDVvGtyp9s7Ms8do%3D"}],“group”:“cf-nel”,"max_age”:604800}

nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}

server
cloudflare

cf-ray
695ef4906e9439b1-CDG

alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400, h3-28=":443"; ma=86400, h3-27=":443"; ma=86400

So I suspect the issue is within Cloudflare. Please advise on what to do to resolve this, below are the info:

Domain: www.utahtriallawyers.com
CDN/CGI Trace Output:
fl=225f2
h=www.utahtriallawyers.com
ip=2404:3c00:c130:4b30:1827:10ad:162c:c6ee
ts=1632854452.889
visit_scheme=https
uag=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36
colo=MNL
http=http/2
loc=PH
tls=TLSv1.3
sni=plaintext
warp=off
gateway=off

Any help is greatly appreciated, thank you!