I am having trouble with topdownloads

hello, maybe somone can help me here . I had my webhost install the script back in april . Now everything was fine then it work great . Now i redid my whole site the look and the pages and everything . Now my problem is it no longer works i have no acess to the the adim console and when i try to click on the zipfiles that i have with the coding it says internal error on everydownload . Now none of the files that are needed to run the script where changed or moved all the files and folders are still there . and i have tried changing the chmod to 777 so that it will read write and excute but i still can not get this script to work . Now my question here is why would it not work when nothing has not changed with the script or how it was installed . The only thing that changed was the look of my whole site not the folders or the pl files or nothing . Thanks for any help in adavnce . Ps i contacted my webhost and he says it is not his the the problem