[TYPO3-english] [error] $TSFE->set_no_cache()

[clime]

Hello list,

if i am logged in into backend and browsing in frontend - these and
similar errors are generated:

[error] [client 83.208.136.41] http://www.xyz.cz/ - cms:
$TSFE->set_no_cache() was triggered by
typo3/sysext/cms/tslib/class.tslib_fe.php on line 3078. Caching is
disabled!

I guess it is not anything serious - disabled cache in admin mode is
understandable. I just wonder how can i get rid of these errors so
that they does not flood apache error logs.

Thank you
clime