queeen of sauce

No queen of sauce recipe book available to buy at bookseller despite having found all golden walnuts. Also game crashes every night I try to divorce Leah “The software was closed because an error occurred.” Playing on switch version 1.6.9.37 single player

I am 99% done the perfection check and every Wednesday that I check the queen of sauce I am not getting the last recipe that I need. What can I besides waiting until fall of year 2? I'm on summer of year 5 and will need to wait until next year to get the last recipe that I need :( Also thanks...