Hi Rougarou2!
For the browser version, try cleaning your browser history and offline website data (make sure your save files are completely wiped) and start from the last chapter. Keep your save files to a maximum of 3-4, and make sure you are close to your wireless source.
For the download version, some scenes may load slower than usual so you may need to wait a little bit more. (Also make sure your text speed isn't set to instant.) If all else fails, try skipping past that part holding ctrl in the download version. =) Hope this helps!