In the course of trying to discover the cause of a sudden slow down on my Magento 1.9 hosted at Cloudways, I started examining the error logs and can't understand why there are so many 'No such file or directory' errors. When I paste the requested URL myself, I get the correct page, but the nginx log then records it as an error.
What can I infer from this? Is there an other reason for this error besides not found. For example if the database was too busy, maybe the request timed out? Not sure where to go from here.