I can't remove the article and i got this error
Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in DrupalDefaultEntityController->load() (line 178 of /home/mysite/public_html/beta/includes/entity.inc).
Recoverable fatal error: Argument 1 passed to file_delete() must be an instance of stdClass, boolean given, called in /home/mysite/public_html/beta/sites/all/modules/website_screenshot/website_screenshot.module on line 111 and defined in file_delete() (line 1238 of /home/mysite/public_html/beta/includes/file.inc).

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