Hello,
yes you'll be able to visit Avae later during chapter 3-4. I am planning to upload both chapter 3 and 4 at once (and also all the finished romance routes). Consider that while chapter 4 will be the shortest, chapter 3 is very long and also the romance routes have a lot of scenes (only in chapter 4 there are 5 romance scenes for each character).
You can report typos sure, but of course bugs/crash are more important :) thanks