In fact, the origin of the problem is simple.Same problem
Can you share the solution if it is easily fixable?
One of the variables of the game is used in different parts of the game; just to store temporarily some values specific to the concerned part (and only for being used during this part).
During the selling of the Futa sperm, this variable is also used internally by the selling transaction: supposed to be initialized first with a number (i.e. proposed number by default), and filled with the number you've sold after the transaction.
But the problem is that this variable may eventually contain string data; usually it contains numerical values, but sometimes not. If it is the case, and if you are selling some Futa sperm, the proposed number is initialized by default with a string, not with a number. That's why the error occurs.
Important: please note that this situation may happen -almost- anytime. I mean, fixing it one time won't be sufficient. Depending of your playing (i.e. depending of the using of this variable when you are playing), this may happen again (i.e. if the last using of this variable stored a string and not a number).
So, the "fix" is also simple. You just need to store a numerical value in this variable JUST before selling some Futa sperm to Rayna:
- you can use a save editor tool (I don't like them, so I don't use them, but well ...). The variable to modify is the variable[15].
- you can play a part of the game in which this variable is used to store a numerical value, JUST before the selling. This is the most simple solution IMHO, with no risks to "break" the game furthermore.
There are several possible parts for that. I've described a simple one there: https://f95zone.to/threads/warlock-and-boobs-v0-411-0-3-boobsgames.18692/post-11044397 .
Remember to go directly to Rayna's house once you've done it: to be sure this variable is correctly filled.
BTW, I've looked at your save file. It's seems OK to me, as it currently contains a numerical value (i.e. variable[15]=28). But of course, it may different in the future (I mean you can't sell your Futa sperm to Rayna immediately here, as your save file -i.e. saved during the night- has been done after the part of the day which permits it).
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