I cannot open Services > Websites tab, the following error is shown:
Internal error: Unable to connect to POA: Unable to Connect to ssl://10.10.0.23:8440. Message Unable to connect to POA: Unable to Connect to ssl://10.10.0.23:8440. File Facade.php Line 23 Type PleskFatalException
API requests to the Management Node from its public IP address are not permitted.
Make sure that Management node IP address from the error is added to the Allowed networks list for the API request:
System > Settings > Public API > Allowed Networks > Add