WP-Cycle, Images window is frozen.

The problem started when I tried to download a large picture. I then got a long error message. I closed the window and then reopened it. It has been a messed up ever since. Now some pictures show up and others show a ? I can’t edit or delete a picture.
The “WP-Cycle Images window is frozen. It will allow me to upload a picture and it say uploaded successfully but doesn’t show anything. I uploaded it from my computer. I should have uploaded the picture to my media library first then to the WP-Cycle plug in. Any ideas? I also deleted the pictures from my Cpannel but they are still showing up on my web site.

Thanks