Invalid reply from server endpoint.

HI Invalid reply from server endpoint. issue.

Plenty of memory on a dedicated server with a separate db server

Here is my config
Registration key i 26943bcf – **** – **** – **** – ed8833175b9d Reset key
Theme name i Newspaper
Theme version i 9.6.1
Theme database version i 9.6.1
HTTP channel test wordpress
php.ini configuration
Server software i Apache
PHP Version i 7.2.27
post_max_size i 50M – You cannot upload images, themes and plugins that have a size bigger than this value. To see how you can change this please check our guide here.
max_execution_time 14400
max_input_vars 5000
SUHOSIN installed false
PHP extensions
mbstring available
GD library available
WordPress and plugins
WP Home URL i https://www.rep-am.com
WP Site URL i https://www.rep-am.com
WP version i 5.3.2
WP multisite enabled i Yes
WP Language i en_US
WP Memory Limit 1 GB/request
WP_DEBUG False
Caching plugin No caching plugin detected – for best performance we recommend using WP Super Cache
NOte: this is false, I have WP super cache installed. We also use engitron on the entire server.

define(‘WP_MEMORY_LIMIT’, ‘1024M’);
define(‘WP_MEMORY_MAX_LIMIT’, ‘2048M’);

What is even more strange is that on the same WP network we have another subdomain site that uses the same version of Newspaper (different license) and it works fine.