[WordPress] Let's Encrypt error on wordpress

[jumpshotink]

Platform

AWS

bndiagnostic ID know more about bndiagnostic ID

bb4000d9-b88d-b65c-5316-70ba7fb45d8d

bndiagnostic output

[Resources]

Your instance has little available RAM memory.

 total used free shared buff/cache available Mem: 975 544 64 66 366 209 Swap: 
634 152 482

You could try to increase your instance's memory. Please check your cloud provider's documentation for more information. Press [Enter] to continue:

[Connectivity]

Server ports 22, 80 and/or 443 are not publicly accessible. Please check the following guide to open server ports for remote access:

https://docs.bitnami.com/general/faq/administration/use-firewall/

[Apache]

Found recent error or warning messages in the Apache error log.

[Mon Aug 05 00:54:26.665718 2024] [proxy_fcgi:error] [pid 529859:tid 
139777506850560] [client **ip_address**:60000] AH01071: Got error 'PHP message: 
PHP Warning: Undefined array key "HTTP_HOST" in /bitnami/wordpress/wp-config.php 
on line 173PHP message: PHP Warning: Undefined array key "HTTP_HOST" in 
/bitnami/wordpress/wp-config.php on line 174PHP message: PHP Warning: Undefined 
array key "host" in /opt/bitnami/wordpress/wp-includes/canonical.php on line 
689PHP message: PHP Warning: Undefined [Mon Aug 05 08:55:50.881241 2024] 
[proxy_fcgi:error] [pid 529859:tid 139776564791040] [client 
**ip_address**:60000] AH01071: Got error 'PHP message: PHP Warning: Undefined 
array key "HTTP_HOST" in /bitnami/wordpress/wp-config.php on line 173PHP 
message: PHP Warning: Undefined array key "HTTP_HOST" in 
Press [Enter] to continue:
/bitnami/wordpress/wp-config.php on line 174PHP message: PHP Warning: Undefined 
array key "host" in /opt/bitnami/wordpress/wp-includes/canonical.php on line 
689PHP message: PHP Warning: Undefined ar [Mon Aug 05 09:35:35.600442 2024] 
[proxy_fcgi:error] [pid 529859:tid 139777523635968] [client 
**ip_address**:28586] AH01071: Got error 'PHP message: PHP Warning: Undefined 
array key "HTTP_HOST" in /bitnami/wordpress/wp-config.php on line 173PHP 
message: PHP Warning: Undefined array key "HTTP_HOST" in 
/bitnami/wordpress/wp-config.php on line 174PHP message: PHP Warning: Undefined 
array key "host" in /opt/bitnami/wordpress/wp-includes/canonical.php on line 
689PHP message: PHP Warning: Undefined

bndiagnostic was not useful. Could you please tell us why?

The site works and the ssl worked in the past. The ports should be opened via Lightsail.

Describe your issue as much as you can

We were using a paid for SSL and when it expired, we switched to Let's Encrypt. We used the bncert tool. It installed but with errors. It couldn't access the .well-known folder so it could setup the automatic renewal. We ran the bndiagnostic tool and received the above.

Not sure why we got an issue regarding the ports. The ports seem to be opened via Lightsail configuration.