[TYPO3-dev] Scheduler and $GLOBALS['LANG'] + scheduler_http

[Robert Gonda]

My scheduler task is executed by extension scheduler_http.
Language functions of object $GLOBALS['LANG'] is not available.
PHP message:
Fatal error:  Call to a member function sL() on a non-object

Typo3: 4.7.12

Anybody help me?
THX.