image handler4 disabled all my products in image manager...

Hello. I have installed image handler, and added additional product images. Everything was working smooth. I was able to get into image manager select category of products then product and add or delete images. Out of a blue i noticed that on one product the additional image thumbnail shows a correct image, but when i am doing a mouseover it shows completely unrelated image. so i went to image handler's image manager to change image, and i cannot get into any of my product images now because every category shows with * meaning product is disabled, while all that products are available, none really disabled.. people are shopping. Can i get any advice on this... what could i do? thanks!