This has been resolved and all services are stable. Feel free to contact support if you face any issues.
Our server admins have identified and corrected the issue. They're further monitoring the server now.
Roundcube email interface was upgraded to version 1.4 for continuous improvement today. The upgrade has completed successfully, however you may face an issue with Webmail while trying to send an email or uploading attachments. Our System Administrators have been notified and they are currently working on resolving this issue. We request you to kindly follow this thread for further updates.
Affected Services