we are using CloudLinux PHP Selector on our sever and I just realised that’s it’s not working properly, so we are NOT running PHP 5.5, we are in fact running 5.2.17, so please ignore my report above.
I will give it another go once we have the PHP version issue resolved.
Sorry, the error is not on install – it happens when I try to activate the plugin.
It does not record anything in the error log when this happens.