As with other not so stable VNs I'll give you the sanity survival tricks:
Save, save, save, after every choice
Be careful with the skips
When it crashes, don't skip where it crashed, take it slow just there, maybe quick-save last remembered lines before it crashed.
These tricks has to be used in some VNs the programmers have made a bad work, also one should try to search for latest patch for VNs with known problem.