Here are the system requirements you need in order to use the eRoom and avoid any technical issues. If you are not sure whether your server supports this, contact your host.
WordPress 5.0 or Greater It is recommended to use WordPress 5.5 or greater with eRoom Plugin
PHP 7.2.5 or Greater
Guzzle 6.3.3 or Greater It is recommended to use Guzzle 6.3.3 with eRoom Plugin. For easily sending HTTP requests and trivial to integrate with web services, you need to use Guzzle PHP HTTP client.
MySQL 5.6 or Greater
WP Memory Limit WP Memory limit of 128 MB or greater (256 MB or higher is preferred).