PHP Sessions Configuration Error  

SugarCRM

SuiteCRM relies upon PHP sessions to store important information while connected to this web server. Your PHP installation does not have the Session information correctly configured.

A common misconfiguration is that the 'session.save_path' directive is not pointing to a valid directory.

Please correct your PHP configuration in the php.ini file located here below.
/etc/php/7.4/fpm/php.ini