The mailing list for listmasters using Sympa

[Markus Schoeb <address@concealed>]

Title: unwanted log entries: Could not find CSS file

For each page displayed in WWSympa a log entry like the one below gets created, which results in masses of entries in the log.

Jan  5 23:07:16 imellon01 wwsympa[22040]: WWSympa started 
Jan  5 23:07:16 imellon01 wwsympa[22040]: [robot domainXYZ.org] [client 62.202.90.223] Could not find CSS file /home/sympa/css/style.css, using default CSS 
Jan  5 23:07:16 imellon01 wwsympa[22040]: [robot domainXYZ.org] [client 62.202.90.223] [user address@concealed] do_css (style.css) 

As I lack any knowledge in these things, can anyone give me a hint on how to prevent these messages?
We are using the standard web styles – without any changes.

Every help would be appreciated.
Markus