Msg#: 3200620 posted 4:49 pm on Dec 28, 2006 (gmt 0)
I believe you can only delete processed log files from the Plesk control panel.
What is it you truly want to do? I don't delete my log files as Apache is just going to recreate them for me. If I want to clear an error log file or something I just open a shell session (SSH) and run a command to clear out the entries.