I recently logged into my Joomla 3.3.5 site and got the following message to upgrade to 3.3.6.

upgrade_35_36_message

When I went to do the upgrade a site from 3.3.5 to 3.3.6 and got the following error:

upgrade_35_36_error

Login issue.

I was able to do a manual update. I downloaded the update package and unzip the files into my joomla install directory and the upgrade worked.

My environment is WAMP, so everything was local. This maybe different with a live site on a hosting platform.

I hope this helps someone else….