[SSL] Update troubleshooting.mdx

Author: ngayerie

src/content/docs/ssl/origin-configuration/origin-ca/troubleshooting.mdx

@@ -42,4 +42,23 @@ Apache cPanel requires that you upload the Cloudflare origin CA root certificate
 ### Solution
 Use the following link to download an RSA version of the root certificate and upload it to your origin web server:
 
-* [Cloudflare Origin RSA PEM](/ssl/static/origin_ca_rsa_root.pem)
+* [Cloudflare Origin RSA PEM](/ssl/static/origin_ca_rsa_root.pem)
+
+## Error message `Failed to validate requested hostname <hostname>: This zone is either not part of your account, or you do not have access to it`
+
+### Cause
+This is a known issue where whilst being created on the Cloudflare Dashboard, Origin CA requires API access for the user creating the origin certificate. 
+If  API Access is disabled for the account, this error is returned.
+
+### Solution
+Please make sure that user creating the certificate has access to the API.
+You can check under Account Home > Manage Account > Members: toggle `Enable API Access` to On.
+
+## Origin Server page is showing Origin CA from another zone from the account
+
+### Cause
+This is a known issue where when the Origin Server page is opened for a zone, then for another zone, it shows the certificate from the first zone.
+
+### Solution
+You need refresh to the page in your browser to list the correct Origin CA for the zone.
+