Callback execution for languages that have no callback

Settings Used
API: D7
Profile: lisa (English, spell check enabled)
File: http://ftp.drupal.org/files/projects/drupal-7.x-dev.tar.gz

Initial Error Message
An error has occurred.
Please continue to the error page
An error occurred. /atr/?q=batch&id=40&op=do
Fatal error: require_once() [function.require]: Failed opening required './/' (include_path='.:/usr/share/php:/usr/share/pear') in /home/bart/htdocs/dev/atr/sites/all/modules/atr/atr.module on line 255

Second Error Mesage (on Review results page)
warning: require_once(.//) [function.require-once]: failed to open stream: No such file or directory in /home/bart/htdocs/dev/atr/sites/all/modules/atr/atr.module on line 255.