Check if file is deleted from Filesystem

[bytehead]

Warning: mt_rand() [function.mt-rand.php]: max(-1) is smaller than min(0) in system/modules/potential-avenger/classes/PotentialAvenger.php on line 278

0 [internal function]: __error(2, 'mt_rand() [compile(Object(Contao\PageModel))
3 system/modules/core/pages/PageRegular.php(155): Oneup\PotentialAvenger->generate(Object(Contao\PageModel), Object(Contao\LayoutModel), Object(Contao\PageRegular))
4 index.php(249): Contao\PageRegular->generate(Object(Contao\PageModel), true)
5 index.php(433): Index->run()
6 {main}