Update failed Easyblog - site not reachable anymore.

Dear Support Team,
we tried to update easyblog, but it failed and our Site is not reachable anymore. It shows:

Warning: require_once(/kunden/382991_84381/webseiten/tauchertraumcom/administrator/components/com_easyblog/includes/checkenvironment/checkenvironment.php): failed to open stream: No such file or directory in /kunden/382991_84381/webseiten/tauchertraumcom/administrator/components/com_easyblog/includes/easyblog.php on line 529

Fatal error: require_once(): Failed opening required '/kunden/382991_84381/webseiten/tauchertraumcom/administrator/components/com_easyblog/includes/checkenvironment/checkenvironment.php' (include_path='/kunden/382991_84381/webseiten/tauchertraumcom/plugins/system/shlib/shl_packages//ZendFramework-1.11.7-minimal/library:.:/usr/local/lib/php') in /kunden/382991_84381/webseiten/tauchertraumcom/administrator/components/com_easyblog/includes/easyblog.php on line 529

Can you please help.

regards

Michael