The events log keeps tracks of all activity that relates to your site and AT5 installation.
Events are divided into 3 categories
informative events will tell you how AT5 is running, and if something unsual but not important happens.
warnings tell you if something unsual happens that could result into bigger problems. This can be a server load that's going up, disk space going down,
many incorrect login attempts, etc.
error events relate to errors that happened while running several modules. These errors often relate to your system and installation, such as file permission errors.
Ideally, you should have have 0 error logs