آپگرید whmcs

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http://www.webhostingtalk.ir/f177/36546/ مشکل مشابه و جواب قسمت پشتیبانی

Hi Arash,

This means that some files may be missing or not updated and therefore do not match the database version. You will need to re upload all your WHMCS directory files again. Do not overwrite the configuration.php file and do not upload the install folder. Some of your files may not have uploaded or been overwritten in your upgrade/install.

Please let us know if we can be of any further assistance.

Regards,

Joe