It seems that your presentation has too many large images, causing memory issues.
Flash, which powers Prezi, uses a lot of your computer’s memory and power. Uploading large media files can cause slow performance, lagging, and other issues.
Please resize or delete some images in your prezi. The optimal resolution for images is 1024x1024 pixels, and the maximum recommended size is 2880x2880 pixels.
*Note: Every time you add an image that is bigger than the optimal resolution for Prezi, you’ll get a pop-up message suggesting you to resize the image. In the future, please always click Resize.