Install 126.96.36.199 from 188.8.131.52
When I try to check for updates I get this error message:
Warning: Cannot modify header information - headers already sent by (output started at /home/admin/domains/vemglobal.net/public_html/sawtelle/updates/concrete184.108.40.206/concrete/controllers/dashboard/system/backup_restore/update.php:57) in /home/admin/domains/vemglobal.net/public_html/sawtelle/updates/concrete220.127.116.11/concrete/libraries/controller.php on line 356
When I try to download 6.3.3 again I get this error message:
The directory /home/admin/domains/vemglobal.net/public_html/sawtelle/updates/concrete18.104.22.168 already exists. Perhaps this item has already been installed.
I just ran into this issue when updating a client's website. I did not look for the reasons why this happens but I can tell you how to fix it though:
1- Download 22.214.171.124 from concrete5.org
2- Unzip the archive you downloaded
3- Browse your website's files to the updates folder and create a directory called "concrete126.96.36.199"
4- From the unzipped archived copy the concrete folder concrete188.8.131.52 folder created in the previous step
5- Log in to your website and go to Systems and Settings / Update Concrete5.
You will now have the option to upgrade to either 184.108.40.206 or 220.127.116.11 ( choose 18.104.22.168 )
This worked for me at least :)