The error log contains all HTTP errors that occur when visitors attempt to view your site, such as requested files not found, etc. The Error Log tool is a presentation of the last 300 entries in your error log. A central use of this tool is to locate suspicious server activity, such as attempted virus attacks. Please contact your hosting administrator if you have concerns about activity in your error logs.
To check your error log:
Click on the Error Log link in the Web / FTP Stats area.
Browse the results.