Most likely it got blamed. On Newgrounds we have a voting system in which users vote for a period of time. During this first part of voting if the submission gets enough positive votes it is protected and stays on the site. If it gets enough negative votes then it gets blammed and removed from the site. Any entry below 1.00 or something around there gets blammed. The highest score an entry can receive is a 5.00. If you go to the flash portal you'll notice flash titles with a purple background. These titles are under judgement and can be blammed or protected. All other entries in the portal have been protected and will remain in the portal unless the author deletes the entry or if it violates the rules stated in the Help/FAQ (link at top of screen above the games and toons buttons).

Thats ecsacly what happed to me isn't it really crap when you make something and put hard work in it just gets ruined oh and you want your level as High as it can get for so the blams can be saved