When I try to install any extension, my site goes offline (maintenance mode).
I'm installing them through the magento connect manager.
An example extension would be http://connect20.magentocommerce.com/community/TBT_Enhancedgrid
I have some extensions previously installed.
I'm running Magento CE ver. 18.104.22.168 on an ubuntu LAMP machine.
I've tried removing any unused modules and clearing var -> cache
What should I do?
use your FTP client to remove the file maintenance.flag. When installing the extension again, disable the option 'Put store on the maintenance mode while installing/upgrading/backup creation' first