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Upgrade Your Installation

Upgrade Failed
A problem was encountered while attempting to apply the database schema updates.

The error message returned by the update process was as follows:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'updated_at' in 'field list' (SQL: insert into `tblemailtemplates` (`type`, `name`, `subject`, `message`, `custom`, `disabled`, `plaintext`, `updated_at`, `created_at`) values (admin, Support Ticket Change Notification, [Ticket ID: {$ticket_tid}] {$ticket_subject},
Ticket #{$ticket_tid} has been updated.

{foreach $changes as $change} {/foreach}
{$change.field}: {$change.oldValue} {$change.newValue}

{if $newReply} ---
{$newReply}
---

{/if}
You can respond to this ticket by simply replying to this email or through the admin area at the url below.

{$whmcs_admin_url}supporttickets.php0action=viewti cket&id={$ticket_id}

, 2016-04-04 02:13:41, 2016-04-04 02:13:41, ?, ?, ?))
How do I get help?

First, we recommend you restore the backup you took before you began the upgrade process to get your installation back online as quickly as possible.

Then open a ticket with our support team including a copy of your upgrade log file from /install/log/. This will help them diagnose what caused the failure, and what needs to be done before attempting the upgrade process again.
Böyle bir hata alıyorum sizce sorun nerede?

edit: DB yedeği aldım. Sizde böyle bir hatayla karşılaştınız mı ?