[TYPO3-english] typo crash after deleting formhandler with filezilla

[Michi Grey]

I accidently deleted "formhandler" with filezilla, now the whole system crashed and I can't even enter backend or anything. I always get this message:

Warning: require_once(/apps/w00000939/cms/typo3conf/ext/formhandler/Classes/Utils/Tx_Formhandler_CompatibilityFuncs.php) [function.require-once]: failed to open stream: No such file or directory in /apps/w00000939/cms/typo3conf/temp_CACHED_FE_ps762d_ext_localconf.php on line 1202

Fatal error: require_once() [function.require]: Failed opening required '/apps/w00000939/cms/typo3conf/ext/formhandler/Classes/Utils/Tx_Formhandler_CompatibilityFuncs.php' (include_path='.:/usr/share/php:/usr/share/pear') in /apps/w00000939/cms/typo3conf/temp_CACHED_FE_ps762d_ext_localconf.php on line 1202

what can I do now? .... I'm really desperate ...