Warning on syslog.module line 106 after click clear submissions button.

Hello,

Here is what I have encountered.
After submitted the form couple times, then I went to clear the result of these test submissions.
Then this appears:
warning: strtr() [function.strtr]: The second argument is not an array in D:\AppServ\www\modules\syslog\syslog.module on line 106.
Showing in the picture.

Does this matter at all?
Or it has to be fixed?

Thank you.

Leon