User Guide

Logs
Errors happen. Most of the time, you are not aware of them because the
system handles them silently. But you might want to know about them, in
order to be able to correct the most regular ones, and insure a better
stability for your shop.
The "Logs" sub-tab is were you can have a look at the PHP errors that
happen. They are logged in the sub-tab's central table, and are presented
in 4 types (here with original explanations from PHP.net):
Informative only. Run-time notices. Indicate that the script
encountered something that could indicate an error, but could also
happen in the normal course of running a script.
Warning. Run-time warnings (non-fatal errors). Execution of the
script is not halted.
Error.
Major issue (crash). Fatal run-time errors. These indicate errors
that can not be recovered from, such as a memory allocation
problem. Execution of the script is halted.
You can also receive a notification about the latest error. Notifications are
sent to the shop owner's e-mail address, and you can configure the
degree of importance at which you should start receiving such e-mails:
use "3" if you only want to know about major issues, "1" if you want to